Well you have a lot of options so I'm going to give you some choices to consider.
You may not realize it but at least on the older ones they had a top and a bottom. You could flip the rear sight by unscrewing it and flip the U notch to a larger square notch. But then you still have the eye focus issue. You can get a fatter brass bead from brownells or a fiber optic front. Some prefer a peep sight. There is williams ace in the hole which is nice but if you want to stick with open sights, tech sights will add height to your sights and are good for plinking around. Now if you want to get away from traditional sights you can get a red dot and mount that on your scope rail. Then there are scopes. You can get a low power 1-4 scope that will take care of your plinking needs, a 3 to 9 power scope that will be better for hunting. There are other scope options but I think these are your best bet for general use. 3x allows you to plink with minimal magnification and 9 power allows you to see what you are doing at 50 yards on paper. If you want to shoot at 100 you'll probably want more magnification.
You may not realize it but at least on the older ones they had a top and a bottom. You could flip the rear sight by unscrewing it and flip the U notch to a larger square notch. But then you still have the eye focus issue. You can get a fatter brass bead from brownells or a fiber optic front. Some prefer a peep sight. There is williams ace in the hole which is nice but if you want to stick with open sights, tech sights will add height to your sights and are good for plinking around. Now if you want to get away from traditional sights you can get a red dot and mount that on your scope rail. Then there are scopes. You can get a low power 1-4 scope that will take care of your plinking needs, a 3 to 9 power scope that will be better for hunting. There are other scope options but I think these are your best bet for general use. 3x allows you to plink with minimal magnification and 9 power allows you to see what you are doing at 50 yards on paper. If you want to shoot at 100 you'll probably want more magnification.