I think outer_divide would be a good fit. The closest it has to a castmate is reboot!Bones, but I'm quite sure Kirk would fit in nicely. AC is five prose tags, so there's a heavy prose emphasis in the game. It's small and the playerbase is chill, so it makes a good reintroduction (a few players have used it to get back into DWRP in the past). And there's a lot for a character like Kirk to get involved with from rebuilding a crashed spaceship to getting involved in the local political tensions to a spot of dragon or other monster hunting. Heck, we had a team launch a space mission recently. There's a ton of room for player influence on the plot (one time we broke history!)

Also worth noting that I'd love to see Steve and we do have an MCU cast consisting of Tony, Pepper and Thor along with Molly here from 616.

Finally, there are dinosaurs.