Before the green yuri boom, what was the holy trinity of yuri?

I thought something like
citrus-netsuzou trap-adachi to shimamura
when i started to read yuri they where definitely the most popular and recommended, maybe bloom into you instead of netsuzou trap
but i wonder how you guys think the trinity was, and how it changed after green yuri
also i was thinking manga before green yuri was a lot more male-gaze, whit exceptions (on a leash, tamen di gushi, pulse etcetc)