Buy one that has a solid handle, not one of those with wire handles. Ours has the wire handle and it gets very tiring to use, and hurts your hand. We’ve always had to use a pot holder with it.
Other things being equal, we’ve found the ones with handles like this to be preferable:
https://www.amazon.com/OXO-Good-Grips-Food-Mill/dp/B000I0MGKE
Thanks for the info!