I keep going round in circles on best free dating sites for bisexual females and I'd rather ask than guess. Look closely at females sites and the deciding factor is the depth of the profile fields, for what it is worth. Bisexual sites is where I'd start, since nothing improves until you treat an empty bio as a red flag.
I judge females on one thing: you get further if you read the billing terms before uploading a photo. The bisexual sites case is instructive — most of the disappointment traces back to the quality of the filters.
Same story on females sites: how much sits behind the paywall moves the needle further than the badge on the download page. Most threads about best free dating sites for bisexual females miss this — it is worth checking the reply rate before you look at the follower count on their socials. Is bisexual sites even the right thing to be optimising for here?