People here can be very helpful but it helps if you help us to help you.
Any particular area of town where you prefer to hobby? Due to travel restrictions or near your home or work.
Any particular type of MPA you prefer? Asian, EE, CDN, EI, etc.?
Is there a particular type of MPA that you prefer? Chatty or quiet? Tall or short? Busty or not? Big butt or not? Blonde hair or other?
Any price range that may limit your options?
What level of services are you looking for?
How much importance do you put on the actual massage and its quality?
You mention SL and E&M. What do you like or not like about them?
Other than that, this board is full of reviews that probably answer most of your questions.