Liberal Gun Owners

RMA is the go-to for budget armor.

Hesco is the real deal if you have the cash to spend. They range from basic models to outrageously expensive and featured, like $3-4k a plate.

I went with Mira Safety plates because they did well in one test I saw and they were a smidge lighter than others, and also not terribly expensive.

For carriers, the Crye JPC is usually baby's first plate carrier, but for good reason. There's...really a lot of brands that make at least acceptable stuff. I like Direct Action for soft gear, good quality but a little pricey, and they're a Polish company so you're not 100% supporting domestic fash.

I would also consider at least getting some IIIa side panels (and therefore a carrier that can support them), if not getting something with full torso protection + the plates. Without a robust medevac apparatus, your vest stopping a round could be a life or death difference, and the coverage of the popular front+back carrier leaves a lot to be desired.