Since it has a 1-1/8 steerer, there are thankfully options.

First, any decent used fork from about Y2k-2015 will fit. Most of them can have their travel adjusted down very easily with spacers under the air piston. You need to find one with canti studs.

For what's on sale now, I'm seeing Rockshox 30 Silver forks that still have 26" canti studs, for sale, if not on RS's website any more. These are not light or fancy. They have steel springs and fixed compression damping, but they are functional, and <$200. You'd need headset and stem to go with. A nicer fork is a Judy Gold RL, air spring, low speed compression adjustment, all alloy... but it starts at $350 and does not have canti studs. I looked at the Suntour catalog, there are a few 26" v-brake options but nothing with damping or air spring.

If you do not find one with canti studs you would be looking for a disc wheel and front brake to go with it, likely more of a project than you wanted