Welcome!  To add to the advice already given, you can post on the "In Search of" board - you might find a lady here who is touring and has your area on her radar.

Hi, I live near Seattle and I would love to give this gobbie a try, however I have no clue how to get started, I was hoping someone would kindly give me some tips on how to start and maybe a beginner friendly provider.  Thanks for listening and I will eagerly await your responses.

Check my reply in the thread right above this one. I would suggest you follow the same advice including paying for vip, reading the reviews, and joining p411 (or date-check--but I think P411 is more widely used in the western states).

The one thing you have going against you is that TER is not the big popular board in Seattle or Portland. There are other local hobby boards that are much more popular in the northwest. We can not name them or give links to them here on TER. You might find them through google, or maybe someone can PM you once you have VIP. Or once you join p411, if you research ladies through that site, there may be links to some review sites. Even though TER is not as big there as it is say in Las Vegas or Los Angeles, or some of the midwestern and Eastern regions, you still can find TER reviewed ladies in Seattle, so it is still a good place to start for a newbie. Maybe once you get more established you can seek out some ladies from other review boards if you are looking for variety. For now you should be able to find what you are looking for if you search the Seattle reviews, and read the Seattle ad boards. The Seattle regional discussion board unfortunately is pretty dead.
Good luck. have fun.