Need recommendations on 50 mile indoor digital antenna

My mother lives in a mobile and has a cheap amazon 25mile antenna for digital channels and I want to get her like a 50mile one. There are so damn many I can't sift through them all.

Anyone have a recommendation on an amplified one that works well?

I like my Mohu Leaf.
They have different mileage and such and I think mine is a 25 mile and it works pretty well no matter what.