Do some research on what the most used scopes are in the sport you want to shoot, and buy the one you can best afford.

It's really that easy, don't try re-invent the wheel. If a scope is good for your discipline of sport shooting, it's already in use. Just go find out which ones they are.

Inquire of the local club members what they use, and pay attention to what is used in any competitions. Focus on the top shooters at your club, what are they using ?

Just follow suit.

Don't expect to find some oddball, bargain scope that no-one has ever heard of and make it work in your sport. If it could work, someone would already be using it.