i did a quick scan of the list, and:
the pill - most BE focused game by far, absolutely give it a try, it's by a BE artist and it's all transformation themed
change deck - not on list, but a short game by the pill dev, basic rock paper scissors game with BE
irresistible johnson (abandoned) is a guy who takes a drug and his cum BE's women, and you can keep cumming in them to make them bigger
in the hamlet of lolibigtits or whatever is largely about grinding to BE your assistant girl, but the actual gameplay is rpgmaker combat
my new neighbors is technically more about corruption, but every stage of it (which happens quickly) includes significant BE, including one of the more recent girls getting massive
chichi miko isn't really BE themed, but is giant-breast-themed and i believe at the end of every route you
there's a game called amalgamation rpg or something that's technically about vore, but every time you absorb someone her breasts get bigger (which happens very often)
the other game by the hypnosis dev (inheritance maybe?) is heavily BE-focused with a very similar idea (i think it's the mc takes pills and his cum causes BE rather than hypnosis causing it)
maiden of milk? is super early but seems to be BE focused
the thickening (abandoned) is more futa focused, but IIRC the theme of gradually growing also causes BE whenever it happens, though more of an afterthought
hopefully that helps! but yeah, it's a huge shame that there aren't more games like growth academy, it's absolutely amazing for what it is but it's also incredibly unique when i feel like it shouldn't be