A lot of Mistresses who tour regularly aren't doing that right now, which is probably why you're not finding a lot of info about upcoming travel!

Social media is probably your best bet for figuring out who's actually active at the moment. Many of us are cutting back, only seeing regulars or not sessioning at all and not everyone can be bothered to send a "thanks but no thanks" response to inquiries that don't make the cut. If you're interested in someone I suggest you take a look at her twitter and make sure she's sessioning. An active Eros ad is also a pretty good clue. Best of luck.