Is there anyone fimilar with safestescorts?

Roomservice2000
datecheck
preferred 411

The rest are questionable at best. If they ask for a credit card, forget it.

Of these 3, some are more widely used in certain parts of the country than others.  Check your local board (pull down menu on left) to see which is preferred in your area.

You're better of to stick with the most popular ones. Date-Check and Preferred411 are national, and are great if you do any travelling. RS2K is the one most widely used in the midwest. (Chicago area)