It's a terrible time to get into reloading. Everything is scarce or horribly over priced. If you don't already have primers, I wouldn't even bother. Maybe get a lee reloading manual for some good reading material. Eventually the overseas primers will drop like a sledgehammer and things will normalize a bit.
If you're dead set on starting, think of the caliber you intend to load for and your favorite factory load in that gun. Then buy those types of bullets and some dies. You could get a small jump on reloading just by decapping/sizing some brass. Maybe tumble some too. Afterwards at least you'll have some processed brass.
That's especially useful if you are planning on loading precision rifle rounds. Sizing, trimming to length and chamfer/deburring can be very time consuming.
still a good time to get the manual and start reading it, to me, one of the most important parts of learning to reload, is understanding the components and how the work together (interior ballistics) in order to make proper decisions on selections of powder/primer/bullet combinations, etc....
by gathering equipment now, starting with the press, a heavy, stable bench can be built and begin case preparation, while gathering components as they come available at reasonable prices (also reading the equipment instructions manuals for proper set up, operation & adjustments, like die adjustment, scale calibration, etc...)
the component shortage will most likely end in the next several months and then it's time to stock up and start loading
and there is always people on this and other forums to help with any assistance needed as you get started