You have a lot of selections of scope manufacturers. What are ya looking for? Something where you keep BOTH EYES open with a "Red Dot" and close up or distance won't make any difference? You have Bushnell, ATN, Mueller, Weaver, Tru-Glo and other good ones. Just don't get the "multi-reticles" as the POI will change with each reticle change. I have a Bushnell Trophy on a Remington 870 that's been very good. OR, something in a single power of 2 or 4 you have Leupold, Bushnell, Weaver, older used scopes like Weaver's "K" series, or a scope in 1-5x28, 2-7x33, 3-9x40 you have many choices in Leupold, Weaver, Bushnell, Redfield, Simmons, Mueller, Burris and most other scope makers. On my 30-30 I have a Burris 3-9x40 FullfieldII and on my 1894(44Mag) I'm using a Redfield 2-7x33. Also lots of people now use the shotgun scopes out there and they work very well.
Del