35 Remington is my choice for a lever action. My wife shoots one and loves it. More bang than a 30-30.
For a combination round that will shoot both, depends on what you are hunting and how far you are going to shoot. I think the 458 Casul is available in lever action assuming you can handle it in a pistol. Will take everything in Arkansas up to 150 yds pistol and probably 200 yes rifle.