I know very few people using Hare, especially since it only works on "FOSS platforms". And I will still maintain that V is vapourware. They still have the same false claims on the website that they've had from the beginning for ~6 years.

Odin is "successful enough" so far. Also, you know about it, so that says something.

I know about Hare and V too, so, then what exactly does it say for me to know about a programming language? Not much.

I have technically written more Odin than Hare (one Godbolt example, arguably two if you count my explaining how to modify the example to illustrate another problem) but that just means I have more justification to say I don't like it.

I've written a lot more Scheme and I had so thoroughly forgotten writing Scheme that I had to go read the source for myself when I got email about it decades later to be sure it wasn't just a coincidence of author names.

I'm not convinced there is space for any of the "C successor" languages in the twenty-first century and in the event space is made or given for one I doubt there'll somehow be room for more. So with today's field I would bet on Zig.