If you live in a major city.....
Hit up them Pride parades and festivals.
You got straight women, lesbian, bi women, pansexual, deepdishsexuals...
because they assume most of the men are gay, the women let it all hang out, especially since it's warm out.
You'll see gangs of lipstick/femme lesbians that you won't even know are lesbian until their gf or wife pops up.
The lesbros are more obvious in a normal setting. Go to an event like this and you realize there are lots of lesbian women you'd assume are straight. Eye opening frfr.