Welcome ZedAxis,
Depending on your budget I would recommend either a larger CUT (Compact Utility Tractor) or preferably a true utility tractor. Whatever tractor you get I recommend getting it "loader ready" as the joystick will make hydraulic connections for your blade simple. Look at how the manufacturer mounts their loader and grill gaurd - you will want to use the same mounting locations when you fabricate the mounting points for your plow.
For plowing snow I would highly recommend a hydraulic shuttle for your transmission choice (also called a power shuttle, power reverser, etc. depending on the brand). A hydrostatic transmission would also work, but you will be limited to a CUT. As mentioned by other posters, weight is key in having the ability to push snow. A 50hp utility tractor is going to do a better job pushing snow than a 60hp CUT due to more weight (and larger tires which will have better traction) while likely costing less to purchase. If you are working on some type of pavement or improved gravel I strongly recommend the Nokian, R14T, or turf tires as mentioned by others. If you will be plowing dirt and potentially muddy roads and areas the R14T or even R1 tires might be a better choice.
On the larger end of what you might be looking at, Rustyiron has a very nice Kubota M9540 setup for plowing:
Utility Tractors (Likely the sweet spot between size/speed and budget):
- Kubota M6060 / M7060
- John Deere 5E series
- Kioti NX Series
Larger Utility Tractors (These are one frame-size up from the above utility tractors. They will ride better due to larger tires and a longer wheelbase but will also cost more.)
- Massey Ferguson 4700 Series
- Kubota M5 Series
- John Deere 5E or 5M series
- Kioti PX Series
CUTs (available with either a hydraulic shuttle or hydrostatic transmission unless noted)
- John Deere 4000 series
- Massey Ferguson 1700M series (1750M and larger)
- Kioti DK10 / DK10SE
- Kubota MX Series (Hydrostatic only)
- Kubota Grand L (L4760 and larger, Hydrostatic only)
Good luck and please post pictures when you fabricate your plow setup.
Edited to Add: I completely agree with the other posters recommending a factory cab. All the models listed above are available with a factory cab.