It depends on what you want to use your rifle for, Plinker, hunting, competition?
In the first 2 areas there are options from almost every manufacturer. In the competition arena it all starts with how much you want to spend. The main criteria fall around how far down the parallax will go: 25 yards is needed for most competitions. Then you move to how much elevation is built into the scope: 22lr eats up elevation pretty quickly after 200 yards. Then the secondary features like amount of magnification, FFP vs SFP and reticle choices.
In the competition scopes there are offerings from many companies but based on price ranges and from my experience:
$300 to $500- Athlon Argos BTR, full featured $380, Athlon Helos BTR, full featured, better turrets, zero stop $530'ish. Vortex Diamondback Tactical, semi-full featured, $350'ish.
$1,000 to $1,200 and a step up in quality of glass and features- Athlon Ares ETR, Full featured and 32 mils of elevation will take you to the extreme in 22lr range $1,200. Vortex PST2, full featured and a solid proven optic $1,100.
Beyond $1,200 there are a plethora of options of quality full featured scopes. I personally prefer a a FFP and Christmas tree style reticle for competition and any other use. If you are tight on your budget you can start with an Argos or Diamondback but I would encourage you to save up a bit and move up to the Helos, you won't be disappointed.
Once again it all starts with what you THINK you will be doing with the scope. Plan for the future as well.