People followed Yaoi That Is Clearly Based On/Inspired By A Pre-Existing Work page 1

Sometimes You Read A BL And Think Hey These Character Designs Look Suspiciously Like [Insert Anime Here]. I Think It's Really Funny And Endearing And Am Compiling My Personal Finds Here.

I Think The Biggest Offender Is Haikyuu. I Haven't Watched Kuroko's Basketball But That's Def Up There Too. Yuri On Ice As Well Obviously. 

Suggestions Welcome.

:D