I'm surprised that lever action is not doing better, the only reason I picked bolt over that is price.
There were 3 things that disqualified Semi Auto for me, Price, increased number of parts, and most require magazines that can be lost or damaged. single shot, something like an Encore would be doable,but expensive if you include multiple barrels (.223, 308, 12Ga. and 45 blackpowder) an SKS for Semi auto, bolt actions come in every rifle caliber you can imagine but I would try to stick with 7.62 X51 or 8MM, Lever action I would choose the Savage model 99 in 308 with the rotary magazine they came out with 110 years ago you are not limited in bullet choice like with a tube magazine.