The microscope recommendations are a bit problematic, except for the mantis. When you can afford it, get yourself a binocular stereo microscope with sufficient viewing distance from the work piece. In contrast to USB microscopes, those will have no image delay, which can make hand-eye coordination difficult, allow for depth perception and have way superior image quality.

When buying a trinocular it should be a simul-focal one where the stereo microscope and the camera are focused and available all at the same time (no switching of the light path to the camera). Example for such a trinocular microscope: AmScope SM-4NTP. A bincular microscope with matching specs will be slightly cheaper.

Louis Rossmann explaining in more detail: https://www.youtube.com/watch?v=C_eQrbop-J4