Here’s my page about my Ender 3 V2.
I suggest going to the Getting Started Guide.
For the full list of things I did to my printer, you can check out the Upgrades.
Other printers to look at:
A1 Mini by Bambu Labs. Bambu’s known for their “plug-and-play” capabilities. It also connects to an “AMS” which lets you print multiple colors (but that costs extra)
Ender 3 V3 series - Good bang for your buck. Supposedly less work and works really well out of the box (though I think I’ve done the hard part with my printer).
Prusa Printers - More expensive, but are also known as workhorses