I certainly apreceate good leather, but if a person were to have a strict $ parameter , I would be sending them in a different direction than if they had two or three times the budget.
To go generic , if a person hasn't stated a strong preference for somthing else on purpose , my default preference is for a Pancake. Thumbreak , decent amount of rake , and not overly high riding. Good leather is best , but a $30 nylon will be better than $30 leather.
For inexpensive mass produced Kydex , the Uncle Mike Paddle is decent quality , and has lots of adjustment for ride position. Avoid Fobus.( Insert stories of poor fits , and breaking and falling apart. )