Have you heard of Reddit? Reddit is a discussion website where you can find forums for nearly anything you are interested in. It is super useful in meeting new people interested in the same things as you & learning about other people's experiences.
There are a few different kalimba subreddits, but r/kalimba seems to be the most popular. I love scrolling through here & finding different songs being covered and learning new tips and tricks. For example, I actually learned about putting a piece of paper under a buzzing tine to prevent it from buzzing. A real power move right there.
If you have been dying to meet some new friends who enjoy the kalimba as much as you, I seriously recommend exploring the kalimba subreddit! There is nothing else quite like it & I believe it is the best way to become apart of the kalimba community!