In reply to Andy Jackson:
You could buy some moon yellow holds? But costly for a full board set: https://moonclimbing.com/original-school-holds.html
Core do some good things (comfy holds and aggressive holds), but often sold in large sets. I have a set of limestone small crimps that are quite aggressive.
Holdz and Bleaustone - the holds I have from these two companies are mostly comfy; Bleaustone flat crimps/pinches make me engage my thumbs. Some holdz holds are quite fingery fun (I think I have some Generalz types).
You could look at second hand and try pick up something you want.
I use to want some stonesmith holds, but they aren't easy to find!
Interested to see what others recommend.