Everybody is going to like the look and feel of different putters–blades, mallets, toe-hang, toe-balance, etc. My number one recommendation is about length. I’m 5’10” and play a 33.5″ putter 2° flat. Most putters you can buy off the rack are 34″ or 35″.
I think most people play putters that are too long for them. As a result they stand too upright and don’t get their eyes over the ball at address. My piece of advice is to get whatever putter you like the look and feel of but GET FIT for it before you buy. Best putting starts with a good setup and to achieve that you might need some lie adjustments and likely need a length adjustment.