Comment by unquietwiki

As the founder of r/altprog on Reddit (been following random languages for 12 years now), my favorite "alt" language is Nim. It feels like Python & Javascript had a baby that was C++. Wish it had lambda operators like C# and JS, but it does have the cool feature of defining your own language constructs.

Also, shoutouts to Zig, Crystal, and Ballerina: those are other interesting ones off the top of my head, that folks should look into.