Come check out The Fleet. It might fit what you're looking for.

It's a sci-fi setting - a fleet of alien ships that travel through alien galaxies. All characters are depowered upon arrival, with the opportunity to get their powers back; however, all characters also have the opportunity to gain other kinds of powers, too. Or they can stay non-powered, that's just fine. We are slow to medium pace, we have a meta plot but it allows for slice-of-life elements, too.

We have a TDM, if you want to test it out.