I'm going to go ahead and say get an Ender 3. "Easy" 3D printing is nice and all, but if that's what you want, you can go order parts from a print farm.
An Ender 3 is really going to allow you to get your hands dirty. It's highly upgradable and extensible, and AFAIK it's also open-source now. There are anvariety of ready-mades community-made upgrades and modifications that you can print and apply, and some that you need physical parts for - but hey, that's half the fun!
Later on, you can swap to a more advanced and stable printer like a Prusa, but the education and experience that a simpler printer like this is going to provide is simply invaluable. Plus, it's also on the cheaper end, which is perfect for a starter printer.
(I'm talking about the Ender 3/3 Pro here, not the late upgrades like the V2 or V3, which are more restricted and come with a lot of features on their own, which really limits how much you can learn on your own)