Takes a lot of time but worth it if you can invest
Seems like a few new bowl members, so I'll throw in my $0. 02. If you have a good hour or so to spend a day (spread out in 15-20 min increments, so about 3-4 times a day), it's not too hard to find what you're looking for.
Just message who you're interested in, see if you can agree on a ppm (or do that later, up to you but I think it saves time upfront) and meet up.
If you can't agree, then move on. I generally lowball and see if any bite, or if not, then offer a little more but never above my max. I've gotten a fair amount of young (under 30) sbs that way, and kept them in cycle until I got bored or better came along.
Good luck!