Wow, I did a quick look around at most of the major gun makers sites and not many make a 30-30 anymore. I was sort of shocked. I thought I saw some 30-30 bolt actions before but I don't see any listed. Just lever guns and single shots. I figured surely Henry would make one, but nope. Your best bet from what I can tell is a Marlin.

If you like that round though and want a bolt action or semi auto look into a 7.62x39, pretty close in ballistics if you get premium ammunition.

Paul