I’m in the same boat. Returning for our second trip, in a few weeks.
Finding someone for a couple is difficult; it’s hard because I don’t know how to search profiles or reviews. But, more to the point, the experience is different. Getting yourself a fantasy date you focus on visuals, and the activities. With a couple the fantasies is a 3some so you have all of the problems of buying someone else a gift, with finding just the right chemistry. As you say, the most difficult part is of it is finding someone really into the Girl-Girl.
It's easy to list on a web page, hard to know who is really into it.
On my first outing, I wanted to make sure it went well, so I lined up providers for two nights. We spent time with Tess Taylor (although she was a blond back then) She was wonderful.
Tess suggested 2 hours, and she was right it was the perfect about the time.
On the other night we spent time with Kristal Marie who was also wonderful.
They have a different look, but I recommended both highly.
My wife and I disagree on which of the two we enjoyed more. like you, we might try someone new this time, but we are considering re-booking.
Have fu