im guessing you mean the usual anglophone circles sense of like, moe aesthetics, and i cant think of anything that fits the bill to me off the top of my head -- i havent actively consumed BL since i was in high school and for me classic shoujo-informed aesthetics a la clamp come to mind more than moe stylings. but in terms of the more complex affection/embodiment phenomenon (everyone please read the moe manifesto!) i think many places fujo shipping and blorbo culture interact qualify esp among young fujoshis who will one day grow up to be transmasc and male-loving in some way