I'm also in the process of learning Esperanto (there's actually a decent amount of us on Lemmy)

I don't foresee it ever being particularly useful on its own, but it is a really easy language to learn, and I think it's a great way to learn how to learn languages. I feel like after casually teaching myself it for a few years I'm a lot better prepared to learn another language somewhere down the road

There's a few Esperanto clubs and such out there, I'm not a part of any of them so I can't really comment on the community all that much.

One thing that does kind of interest me is Pasporta Servo, which is sort of a free Airbnb/couchsurfing thing for esperantists. Seems like that could be a cool way to travel around on the cheap and probably a good way to get more involved in the Esperanto community. Unfortunately most of my traveling is done with my wife and I haven't been able to convince her to learn Esperanto with me so I doubt she's gonna want to go hang out with me chatting with someone in a made up language in a foreign land.

Mostly I talk to my dog in it. She knows most of her basic commands in both English and Esperanto.