And a lot depends on the area you're willing to shop in. Unfortunately, I can't really help because none of those shops are offered where I live. When I was in Salt Lake City, I shopped for A Closer Look, 2nd to None, Sentry,, BARE, Customer Impact. For all of them, I thought the pay was decent and the reimbursement, generous.
I know SarahShopper has done some high-end shops, but I don't know which companies she's signed up with; I do know she lives in a MAJOR metropolitan area. Many other shoppers have done this type of shop. Maybe a forum search of "high end shops" might be helpful.
Alta360 has some cosmetic shops;it has what I think is a huge required purchase, but it's stuff I wouldn't use, and I don't know anyone who does use it. The shopper pay is minimal, but the reimbursement covers the required purchase.
PrestoInstaMaps (SASSIE) has hundreds of shops in California. If you've never used Presto, I strongly recommend it.