An AR pistol with an arm brace & Full Float tube with a suppressor if starting from scratch. Truthfully if you aren't saving fur, any short barrelled accurate rifle you don't mind scratching would work. Lever action .30-30's were pretty prominent for a really long time.

I have used a mini-14 for this a lot. I have a 600 in .308W in my beater truck, and a 16" AR in HBAR configuration with a decent scope in my other truck. There's always a pistol. I quit leaving the mini in the truck when my boys started hunting coyotes with it. For some reason it just never migrated back. When I first took the mini out I used a 788 in .22-250, but when the barrel started getting sloppy it went down the road in trade.

“You never need fear a man, no matter what his size. When danger threatens, call on me, and I will equalize.”
Samuel Colt.

�Common sense is genius dressed up in work clothes.� - Ralph Waldo Emerson