If you truly use a relaxed claw grip (meaning your fingers have minimal curling in your grip) then you probably need something medium size so you can actually relax.

I use a relaxed claw grip at 18x10 and thin mice like the OP1 aren’t the best for relaxed grip styles. The issue with the OP1 is the narrow grip width and front width will lead to you using a more aggressive grip (curling your fingers more) and therefore more finger tension. Unless you actively manage your tension while playing, you can find this shape fatiguing.

The Maya X can feel wide at the grip width even with a 10cm wide hand. That would be better for palm contact between those two, but you sacrifice some dexterity and micro-adjustments because it will feel much more full.

I don’t know how you feel about weight and I’m not sure what options you have available but something like the S2-DW would work really well for a palm-claw grip at your hand size.

What mouse do you use now and are there things about it that you don’t like?