I've always felt like there is a lack of plus sized baddies in BL manga/manhwa so here you go!
★ No particular order! (Newest at the back of the list) Feel free to recommend any to me!
➪ WARNING: This list may contain triggering content, such as graphic depictions of violence... I will try to warn for anything in the description.
Big Beefy Bottoms:
https://www.mangago.me/home/mangalist/3118179/Crybaby / Baby Girl Tops:
https://www.mangago.me/home/mangalist/3118172/ 
Messages