I can't believe I'm saying this but not all girls, in a yuri, have to be lesbians.
Now I kinda want an Among Us-style series set on a cruise ship in the middle of the Atlantic where a dozen 'straight girls' need to find the secret lesbian couple. They put their yuri goggles on, read into the slightest interaction, and obsessively start thinking about what constitutes affection. Some 500 IQ masterminds specifically playact being in a relationship to lull the 'real lesbians' into a false sense of security, before realizing that they actually enjoy it. In the final arc, we get plays like 'I know you know that I know you're lesbian'. The series ends with every last one of the girls realizing that they're gay, and the mastermind is revealed to be a chick who wants to be the last straight girl on the planet and build herself a reverse-harem of men, but realizes that she was way too good at her job, and now all the guys want to be in cute yuri relationships as well. The series ends with her sobbing on a lonely mountain peak, horrified at what she's achieved, while society reveres her as the patron saint of Yuri.