I've always done outcall to my hotel. Below are fairly "reputable" sites if you want outcall and you can get a feel for the rates. I don't remember seeing on girls profile about "refusal", think the Bangkok girls are prob the most "professional" (vs. in KL where they did explicitly say they only did X or Y). You may want to double check when you book though.
http://www.luxurythaimodels.com/models/
https://bangkokescort.com/
https://www.bangkokgoldenescorts.com/thai-escorts-models.html
For luxurythai, I've had Rita and YoYo (no longer there) a while ago. Never did get to writing a FR but probably should. Rita looked great but chemistry wasn't great, YoYo was really fun. I haven't noticed them on Smooci
For bangkokescort, I've read some FR here and there that Cherry and Bonnie are great. I see them on Smooci and have good ratings
For bangkokgoldenescorts, plenty of FR here for you to review. I haven't noticed them on Smooci
As a newbie, just know that most pics are photoshopped and more times than not, the woman is older than stated. Best is to read the FR.