Wezterm is my favourite because it’s really configurable and supports ligatures. Konsole is also quite nice. Generally I’m in favour of using whichever one comes with your DE, or Wezterm if you use a WM.

Kitty is probably the most popular one, but I don’t like it cause no ligature support no acceleration it claims it has good font management, but fonts never worked properly in my experience.

Alacritty and Foot are also popular for their performance. Alacritty does have some stability issues though.