For a 22LR, if you're not a serious target shooter, a Simmons, Tasco, or Bushnell 3x9x40 or 50 will work fine. I like 50mm 'cause it provides more light with the less expensive optics.
"With great power, there must also come great responsibility." - Stan Lee
"All that is necessary for evil to triumph is for good men to do nothing." - Edmund Burke