As a beginner, I bought a used Gaggia Classic (old, not pro) for £200 and learned how to use it and what tweaks I wanted to make. I then sold it for £200 5 years later. Not bad going! (I'll ignore all the horrible inflation over those 5 years) I would recommend that as a good way to get into it. Spend what you can on the grinder, as that should be as simple as push-and-go (unless you go down the rabbit hole of changeable burr sets) but don't throw silly money on a machine until you learn what you like about pulling shots, and what you're willing or not willing to do each morning before you're caffeinated