Best tutorial for cartridge setup

I had to move my turntable take my tonearms off and now I need to do the setup of arm and cartridges. The friend who helped me is currently unavailable, and in any case, it is a skill I need to develop for myself.

I am looking at videos, but they conflict in terms of order of operations, e.g. some set tracking first, others say you should never do that.

Is there some authoritative source?