Glances is a fully featured system monitoring tool written in python. Out of the box it's quite similar to htop, but has quite a few more features, and can be ran without installing anything other than pipx, which you should already have installed if you do anything with python.

pipx run glances

Once you run this you will be in a tui application similar to htop. You can kill processes with k, use left and right arrows to change the sorting column, and up and down to select different processes.

running pipx run glances on my ubuntu 21.10 machine inside the kitty terminal