First off the is no right or wrong answer. I think 30 tp 40 hp is in the right size. After you have a tractor for a while you will know what you need, but of course it’s to late then unless you trade.
People tend to recommend what they own. I’d start with nearby dealers and work out from there. It’s nice to stick with an established dealer that will be there for parts and service. Sit on tractors, see how they fit you and see if they will let you drive them around and try them out.
I prefer a stand alone splitter, that way the tractor can be used to haul the split wood.
Tractors are in short supply now, harder to find used and new both.
You might check out rear snow blowers. It lets you leave your end loader on and they are cheaper, but front mount is better if you do a lot. Sounds like you get a lot of snow.