Here are a bunch of projects with "Seventeen" in the title. Some may be suitable; some may not.
German suggestions here:
viewtopic.php?p=2062770#p2062770
Mammy Tittleback and Her Family: A True Story of Seventeen Cats:
https://www.gutenberg.org/ebooks/33240
The First Seventeen Years: Virginia 1607-1624:
https://www.gutenberg.org/ebooks/30780
Seventeen trips through Somáliland:
https://www.gutenberg.org/ebooks/57907
Domestic Life in Virginia in the Seventeenth Century:
https://www.gutenberg.org/ebooks/27482
Seventeen Years in the Underworld:
https://www.gutenberg.org/ebooks/56443
"Stuart or Jacobean (seventeenth century)" or "Stuart or Jacobean (late seventeenth century)" in Chats on Old Furniture: A Practical Guide for Collectors:
https://www.gutenberg.org/ebooks/34877
"Some book-hunters of the seventeenth century" or "Librarianship in the seventeenth century" in Essays in Librarianship and Bibliography:
https://www.gutenberg.org/ebooks/53163
"WOMEN AND BOOKS: The Seventeenth Century" in Essays:
https://www.gutenberg.org/ebooks/1434
"A panoramic view, part II: Seventeenth century to the present day" in The Story of Spanish Painting:
https://www.gutenberg.org/ebooks/59206
"The great duel of the seventeenth century" from Lectures and Essays:
https://www.gutenberg.org/ebooks/6570
Seventeen Species of Bats Recorded from Barro Colorado Island, Panama Canal Zone:
https://www.gutenberg.org/ebooks/28852
An Ode Pronounced Before the Inhabitants of Boston, September the Seventeenth, 1830, at the Centennial Celebration of the Settlement of the City:
https://www.gutenberg.org/ebooks/22626
Seventeen Talks on the Banking Question:
https://www.gutenberg.org/ebooks/60029
Speculum Amantis: Love Poems, from Rare Songbooks and Miscellanies of the Seventeenth Century:
https://www.gutenberg.org/ebooks/46359
"Buildings of the seventeenth and eighteenth centuries" from Seville: an historical and descriptive account of "the pearl of Andalusia":
https://www.gutenberg.org/ebooks/64914
"Christmas in Seventeen Seventy-Six" in The Children's Book of Christmas Stories:
https://www.gutenberg.org/ebooks/28308
Nunnery life in the Church of England; or, Seventeen years with Father Ignatius:
https://www.gutenberg.org/ebooks/56468
The Military Sketch-Book: Reminiscences of seventeen years in the service abroad and at home (Vol 1):
https://www.gutenberg.org/ebooks/58449
The Curious Case of Lady Purbeck: A Scandal of the XVIIth Century:
https://www.gutenberg.org/ebooks/15257
London in Modern Times: or, Sketches of the English Metropolis during the Seventeenth and Eighteenth Centuries:
https://www.gutenberg.org/ebooks/35084
Number Seventeen:
https://archive.org/details/numberseventeen00traciala/page/n5/mode/2up
Seventeen:
https://archive.org/details/seventeen1916tark/page/n7/mode/2up
Sweet Seventeen:
https://archive.org/details/sweetseventeen00lockgoog/page/n4/mode/2up
Seventeen Southchurch Hymns:
https://archive.org/details/seventeensouthc00bategoog/page/n4/mode/2up
Seventeen Suffolk Martyrs:
https://archive.org/details/seventeensuffolk00layarich
"Sirs, only seventeen!"
https://archive.org/details/sirsonlyseventee00towniala
Outlined explanation of the proposed grain marketing plan of the Farmers Grain Marketing Committee of Seventeen
https://archive.org/details/outlinedexplanat00farm/page/n3/mode/2up
Seventeen sermons on the nativity:
https://archive.org/details/seventeensermlanc00andr/page/n7/mode/2up
Seventeen sermons, on various important subjects ...
https://archive.org/details/seventeensermons00hayw/page/n3/mode/2up
Seventeen-seventy-six, and other poems:
https://archive.org/details/seventeenseventy00john
Seventeen Years Among The Sea Dyaks Of Borneo:
https://archive.org/details/in.ernet.dli.2015.175045/page/n5/mode/2up (UGLY scan!)
Seventeen nights with the Irish story tellers:
https://archive.org/details/seventeennightsw00murp/page/n3/mode/2up
Seventeen years in Paris : a Chaplain's story:
https://archive.org/details/seventeenyearsin00noyeiala/page/n5/mode/2up
"Seventeen years in Harrisburg;" a look backward:
https://archive.org/details/seventeenyearsin00stac/page/n1/mode/2up
The Diary of Matthew Patten of Bedford, N.H. : from seventeen hundred fifty-four to seventeen hundred eighty-eight:
https://archive.org/details/diaryofmatthewpa00inpatt/page/n5/mode/2up
Report of the Committee of Seventeen on the Professional Preparation of High-School Teachers:
https://archive.org/details/committeeseventeen00natirich/page/n3/mode/2up
Seventeen short treatises of S. Augustine, Bishop of Hippo:
https://archive.org/details/seventeenshorttr00augu/page/n7/mode/2up
The history of one day out of seventeen thousand:
https://archive.org/details/historyofonedayo00nutt
Doctrine and deed: expounded and illustrated in seventeen sermons:
https://archive.org/details/DoctrineAndDeed/page/n7/mode/2up
Oriental memoirs: a narrative of seventeen years residence in India:
https://archive.org/details/orientalmemoirs00montgoog/page/n10/mode/2up
Seventeen cases of chronic (relapsing) appendicitis, treated by operation:
https://archive.org/details/b22378960
Seventeen skeletons of Moropus; probable habits of this animal:
https://archive.org/details/seventeenskeleto00osbo/page/n3/mode/2up
Seventeen years in the Yoruba country. Memorials of Anna Hinderer:
https://archive.org/details/yorubacountry00hinduoft
Catalogue of one hundred and seventeen interesting and valuable rugs:
https://archive.org/details/catalogueofonehu00ande_0/page/n3/mode/2up
The Adventures of Reuben Davidger: Seventeen Years and Four Months Captive ...
https://archive.org/details/adventuresreube00greegoog/page/n8/mode/2up
Seventeen years from home; or, The adventures of Andrew Jackson Pettyjohn:
https://archive.org/details/seventeenyearsfr00hopk/page/n3/mode/2up
Courtship, in seventeen hundred and twenty:
https://archive.org/details/courtshipinseven01smar/page/n7/mode/2up
Seventeen-year sediment production from a semiarid watershed in the Southwest:
https://archive.org/details/CAT73403588/page/n1/mode/2up
A critical review of the Shakspere mortuary malediction and the seventeen-foot grave:
https://archive.org/details/criticalreviewof00chaprich/page/n5/mode/2up
Retinitis pigmentosa: With an Analysis of Seventeen Cases Occurring in Deaf-mutes:
https://archive.org/details/retinitispigmen00swangoog/page/n8/mode/2up
De Barr's Friends, Or Number Seventeen: Trip to Lake Superior with a Romance:
https://archive.org/details/debarrsfriendso00cadwgoog/page/n8/mode/2up
The kings of the reefs; a poem in one hundred and seventeen cantos:
https://archive.org/details/kingsofreefspoem00care/page/n3/mode/2up
Model simulations of seventeen years of mixed layer evolution at Ocean Station Papa:
https://archive.org/details/modelsimulations00garw
Seventeen lectures on the study of medieval and modern history and kindred subjects:
https://archive.org/details/seventeenlecture00stub/page/n9/mode/2up
Seventeen years' history of the Woman's Baptist Foreign Missionary Society of California:
https://archive.org/details/seventeenyearshi00hull/page/n1/mode/2up
The true church : what is it? ; who compose it? ; seventeen testimonies from different lands:
https://archive.org/details/truechurchwhatis0000unse/page/n5/mode/2up
From the Angle of Seventeen:
https://catalog.hathitrust.org/Record/000320740
The temperance volume: embracing seventeen tracts:
https://catalog.hathitrust.org/Record/102282301
The Seventeen book of etiquette & entertaining:
https://catalog.hathitrust.org/Record/001390936
[ARTICLE] "Seventeen" and the reference librarian:
https://catalog.hathitrust.org/Record/003239358
[SONG] I'm seventeen come Sunday; folk-song from Lincolnshire and Somerset:
https://catalog.hathitrust.org/Record/002564506
The memoirs and remains of Frederick P. Sullings, who died in Portsmouth,R.I., aged seventeen years.
https://catalog.hathitrust.org/Record/102723940
Round the world on a wheel : being the narrative of a bicycle ride ... through seventeen countries and across three continents
https://catalog.hathitrust.org/Record/100767722
The history of the insurrections in Massachusetts. In the year seventeen hundred and eighty six. And the rebellion consequent thereon:
https://catalog.hathitrust.org/Record/001268228