Guides
A job search is mostly admin: writing things down, keeping them findable, and remembering what you said to whom. These are about that half of it.
Keeping track of job applications
After about fifteen applications, memory stops working. This is the smallest system that still holds up at a hundred.
Following up after you apply
One email, a week later, to a person — not three messages across three channels. What to say, and when saying nothing is better.