I like rectangle [0]. It fits my needs well enough without requiring disabling SIP. I especially like the “repeated key presses resize a window on the same side” feature, so I can get cycle the size of the window on the right side of the screen from 1/2->1/3->2/3 easily. I miss i3 sometimes and this ain’t an identical replacement but it gets the job done! Turns out I don’t move my windows all that often anyways.
[0]: https://rectangleapp.com/