I've never seen anyone go quite as big as Epiclust, but hung protagonists are my thing so some of these could do it for you:
First of all I second The Visit and Timestamps. Summertime Saga less so but give it a shot it's the top game on patreon for a reason lol
The Doll House and sequel Doll City are fun, especially if you're into bimbos.
Milfy City is probably my favorite game so I would give that a shot, though the size won't compare to Battle of the Bulges and its ilk.
Harem Hotel is awesome and if you enjoy an even more eastern/anime style try HS Tutor.
For 2d, try Taffy Tales. My 2 cents is that the story is a little cringe, but the sex scenes are well worth it and the protagonist is huge. Also check out SexNote. Art is so-so but it should also tick the box for huge cock protagonist. I would link all of it but I'm not allowed to yet
you can find all of these games pretty easily though, happy hunting!