There are A lot of options out there but it really depends how much you are willing to pay and what exactly you are going to be using it for. For plinking and hunting the semis can be fun while when at the range I would pick the bolt action.
For a bolt, the CZ style with the nickle plated (unfortunately not stainless) is a great choice and has been extremely good for me. For a semi the Ruger 10/22 is a good choice with such a wide variety of accessories for it (such as stainless match barrel, ect).