And depending on how into it you get, you might not even bother with a mount for a camera. If you end up going the telescope route you’ll want a good equatorial mount for that, and typically the camera will attach directly to the telescope.
And speaking of mounts, for astrophotography, an equatorial mount is a must. It rotates along the earths axis, so it can keep the image orientation correct. If you get a mount that moves up/down left/right (they call that alt/azimuth) then your image will rotate as the night progresses.
For learning, there’s also no better place than the cloudy nights forums in my opinion:
edit: dylans comment is also really good and tracks with my experiences as well
