Are you sick and tired of watching you tube yet ? lmao
First up must have, a reloading scale that can weigh 1/10 of a grain. You'll use it for both rifle and shotgun.
Reloading manual usually the specific one for the brand of bullets you want to use...however, LEE and Lyman both make a non bias loading manual...either of those will do nicely !! Lots now use the net for all their info...I'm a book guy for my rifle, shotgun and pistol stuff.
Centerfire Section
Loading press
Specific dies for each centerfire caliber you wish to reload for.
Case trimmer for each one also.
Chamfer for inside and outside case mouth, after trimming.
Primer pocket cleaner.
Reprime tool & shell holder ...hand held ones are the best IMHO...you can feel the primer "fall into" the primer hole IF the case becomes worn. Hard to distinguish that at times when you're priming off the press's arm / linkage.
Loading block for holding the prepped cases.
A bullet puller to pull out your mistakes..(( annnd there will be some)...inertia or collet type.
Case lube. Best I've found is Imperial Sizing Wax...a lil dab'll do ya...also used Dillion case lube Spray for yrs, also an excellent choice. Hornady now has " One shot " case lube...great reviews on it too.
Powder funnel
Powder Trickler
Vernier caliper (standard dial is good) the digital ones can drive you batty if you let em

A case tumbler is a great asset if you're loading volume or for 3 or 4 different calibers at the same time, and have dirty brass.
Most of my stuff lately has been under 60 rds per session per caliber...my brass is usually clean, but if it needs a shine...this is what I use....# 0000 Steel wool and a 18 V drill will polish up small batches nicely...but do it BEFORE you resize it JIC you "chuck" the brass too tight, and squeeze the neck in too far.
Powder and bullet tips of choice ( the manuals will give you lots of powder / bullet combos to meet your requirements)
This is all required to get the job done !
Then you get to load and shoot all the test loads looking for that sweet spot that your rifle will usually like !