Threesome?

My partner & I are both interested in trying a threesome, but we have no clue on how to find someone for it.

We have talked about it & we are both comfortable with it, & we’ve decided we’d want to do ffm rather than mmf. I’m bi, so I’m happy either way.

We don’t know anyone who we think we could ask, plus I’m not 100% sure I’d want it to be with a friend. Like I’m ok if one of us just knows them, but I think friends could potentially cause drama in the future.

Does anyone know best ways to find someone for a threesome? Apps or websites recommendations would be really helpful. Thanks!