Nonfiction doujinshi

1：Anonymous :
2022/12/06 (Tue) 04:45:54: What are some good nonfiction doujinshi, and are they available online/scanned?
2：Anonymous :
2022/12/06 (Tue) 17:50:25: https://bbs10.fc2.com//bbs/img/_888300/888286/full/888286_1670367030.jpg Found this one in a documentary, but there's not enough information given. Wish they would've flipped through a page where they advertised a URL, or something.