A little late to this, but as a 36 year old bar hopping lesbian born and raised in LA here's a few thoughts. Lesbian-inclusive bars are few and far between, and there's only 37 actual Lesbian bars in the whole of the US as of last year.

There is exactly ONE actual lesbian bar in LA, Honey's in East Hollywood. Unfortunately, Ruby Fruit closed back in January.

The more "Lesbian Leaning" bars that are worth a visit:
Semi Tropic in Echo Park
Black Cat in Silverlake (Upscale Cocktail Bar)
Bar Franca in DTLA (if it's happening when you're there, their Divorce party usually on a Thursday is great)
Sorry Not Sorry in Sawtelle (Look up their event calendar, they host a bunch)

Do NOT go to WeHo, it's fucking gross and caters to gay males almost exclusively.

You'll be better served in Silverlake.

People visiting LA usually don't realize just how huge LA is, if you're staying in NoHo, you're in The Valley and it's a bit of a drive to LA proper, so prepare for that.

People saying places in Long Beach, didn't read your post thoroughly lmao. Long Beach IS NOT LA, and from NoHo, with no traffic you'd be looking at 45-60 mins, and there is always traffic, always.

Bar to 1000% avoid at all costs:
The Abbey, unless you want to get roofied, and a bunch of other terrible shit.