You're going down a hell of a rabbit hole here. It can be a ton of fun, very rewarding & also extremely frustrating. I've been handloading on my own since I was 13 years old. Started out with cheap tools and equipment that were handed down, have spent a boat load of money making marginal upgrades and 27 years later I believe I finally have a pretty good setup. My tool list + the make and model that I use is listed below. There are probably better options and everyone has an opinion on this stuff, but just noting what I use.
Single Stage Press - Rock Chucker
Decapping Die - Mighty Armory
Electric Case Prep Station - RCBS
Primer Pocket Uniformer Tool - RCBS carbide for case prep center
Primer Pocket Cleaner Tool - RCBS for case prep center
Tumbler - Berry's QD 500
Tumbling Media - Frankford Corn Cob
Media Separator - RCBS
Annealing Machine - AMP + case pilots & brass grip
Caliper (nice to have a couple) - Mitutoyo
Comparator Set (headspace & ogive) - Area 419
Resizing Die - Redding Type S FL w/ Redding TN bushing
Sizing Lube - Redding Imperial
Case Trimmer - Giraud + cutter heads & cartridge pilots
Priming Tool - Primal Rights CPS
Primer Tube Loader - Double Alpha Primafill
Powder Scale - A&D FX-120i with AutoTrickler V4 & all of the Area 419 upgrades
Loading Block - Area 419
Powder Funnel - Area 419
Seating Die - Redding with micrometer plug (standard or VLD, depending on the bullet)
Shell Holders - common + Redding Competition Sets
There are thousands of dollars invested in this tooling. I realize that is a huge leap (for most) to get started. It took me 27 years to get to this point. I want to make it clear that I'm not saying you must have all of this to manufacture quality ammunition, because you do not. I'm just outlining all of the tools that I use. I'll also say, if I had invested in all of this on day 1 (half of these tools didn't exist then), I would have saved a whole ton of cash skipping all of the marginal upgrades from then to now. As others have noted, there are tons of extremely useful resources available today. Hope this is helpful.