https://pcpartpicker.com/

Have a play around on PPP. They have build guides so pick one that is close to your budget and change around some parts so you learn what’s available.

Also RandomGamingHD on YouTube is great for beginners and helping understand what’s possible.

Good for them. I can think of a few games that would have benefited from this mindset instead of hanging on too long now with the “games as a service” stuff.