Where is Kir Kanos and Carnor Jax?

I'd never heard of Darth Nihilus, but these guys absolutely. Crimson Empire, Crimson Empire II, Crimson Empire III were some of the better Dark Horse comics. There was also a Bounty Hunters: Kenix Kil one-shot, and I think there was a fifth appearance. These guys had to fight Vader to get into the Royal Guard, and they were the best of the bunch. They're certainly canon but not Disney canon. They're both Legends canon, just like Nihilus, who again I'd never ever heard of when they announced him. Nihilus is only in a video game, one that not very many people even played. It didn't do all that well. At least these guys are in actual Legends canon stories in the comics and in multiple ones.