As a client, I mostly "shop" on BP. I know it has a bad reputation here, but my experiences this year have been, overwhelmingly, positive.
So my advice is, don't be so nervous. Get a separate number (voice only or text only, whatever makes you most comfortable), and put it out there on BP. Beware you'll probably get a bunch of bullshit, time-wasting contacts. But I'd bet you'll find plenty of useful contacts at the same time.
Still reading? Ok, lemme define useful bs BS contacts. (Note I prefer text to voice, so yeah):
"Yo". Useless, block immediately.
"Dayum you sexy". Same
etc.
"Hello". Equally useless, but probably benign. It depends on how desperate you are for more business. If you need more regulars, respond, at least until some BS answer happens. Otherwise, ignore.
"Hi, I'm Richard, I saw your ad. I'd love to see you for 1hr OC tonight if you are available"
This is probably me, so please respond!
It took awhile, but my point is, lots of perfectly reputable providers also advertise on BP, so don't be afraid of it. Just be prepared for it