Some research I did recently that would exclude a few brands from the start.
Bobcat T-320 case drain too small at the quick couple at the end of the boom. Second, radiators stacked, all of them one on top of another. Additionally it pulls air from on top of the engine compartment. It would take about, oh two minutes to clog with debri. Plus lowest
hp rating and lowest psi.
Deere, Again case drain size problem and haven't heard of one running a mulcher yet that is not having cooling problems. I sat in the cab of one and I'm not a claustrophobic person but that is a poorly designed cab.
I am not backing any one brand but I would choose my battles very carefully. And they will all burn if they are not properly cleaned out. I have seen many a gyrotrac burned as well and they have the most purpose built screen/hood setup.
I think they will be a few new options on the horizon.

All the skid steer manufacturers are not solving the problems leaving the door wide open!