It all depends on the bonuses that are available. One of my favorite MSCs is one that I’ve seen a lot of people complain about as being “cheap” on here — but they shop a client that I go to anyway, and after I built up enough of a rapport with them they started offering bonuses, and we would negotiate on them. Now it’s to the point that they text me and my bonus is automatically part of the deal, no negotiating needed — and it’s not a bad bonus. They are now one of my favorite MSCs — but it took a couple years to get there.
I work a full time job and shop on the side — as I’ve done this for longer, I find that my favorite schedulers reach out to me more as the end of the month approaches for harder-to-reach locations that are well worth it — like the $100 bonus 5 minute cable shop or the $80 bonus “make sure they put a poster in the window of the farm supply store” shop. I’d say my shopping is now 80% skewed to the last second half of the month, and I’m making more money now than I did when I first started 4 years ago and took everything I found interesting at any time of the month.
So I can’t really give you an example of a good “high paying MSC” — with the exception of Mintel. Mintel is one of my favorite MSCs — they don’t have a ton of projects — they seem to happen 2-3 times a year — but these have been some of the most interesting projects I’ve ever done, and they pay is more than fair.