Mossberg, Rossi and Henry make a gun that somewhat resembles a 30-30 lever action, but the Wincester or Marlin are the only 2 serious choices. I've handled the others and wouldn't touch one at any price.
The Winchester has been out of production for a few years leaving only Marlin in current production. But your best bet is to buy either used. There are literally millions of each out there and bargians can be found. No sense in paying more for an imitation when the real thing is available for less money.
The Winchester design is solid, but quality has been up and down over the years. I think you are less likely to get a bad Marlin. I also like the Texan versions of the Marlin better, if you can fine one.
The Winchesters tend to be a little lighter and more compact. The Marlin is a bit heavier, but easier to mount optics on if you wish. In my experience the Marlins tend to be a bit more accurate. The thing I like about the Texans is that it combines the best features of both in 1 rifle.