Mostly I use the Lyman 49th (haven’t bought the 50th yet) and the Nosler book. I shoot mostly Nosler bullets and I’ve found that their recommended loads for their bullets are usually quite close to what I wind up with as most accurate. If you’re going to shoot Hornady or Barnes, buy their book and follow their suggested loads, starting near min and working up.

Brass...I buy Lapua or Norma these days, and no longer spend a lot of time on brass prep. Primers...I buy CCI BR primers.

For a newbie, buy the books, read them, read them again, and ask questions on the forum. Lots of knowledge on this forum and others.