How do I get an ERC20?

I'm a bit new to the world of cryptocurrencies, and I've heard a lot about ERC20 tokens. Could you please explain to me how I can acquire one? I'm not entirely sure where to start or what steps I need to take. Do I need to have a specific wallet? Should I buy it from an exchange? Is there a recommended platform or method? Any guidance would be greatly appreciated as I'm eager to learn more and get involved in this exciting space.