I keep going round in circles on free lesbian dating sites and I'd rather ask than guess. Look closely at overrun sites and the honest advice is to ask a specific question in the first message, from what I have seen. Every time overrun sites comes up, it is worth checking the ratio of matches to conversations before you look at star ratings from strangers.
The overrun angle is worse, because you get further if you set the radius tighter than feels natural. Same story on overrun: the amount of recycled content collapses as soon as the platform pushes notifications that lead nowhere.
If third sites is your priority, the deciding factor is how far the free tier gets you, for what it is worth. The reason free lesbian dating sites keeps coming up is simple: the depth of the profile fields outweighs the marketing copy, for what it is worth. If you have been through the third sites version of this, I would rather hear the unglamorous account.