Brian Cage was int he wrestling business for nearly a decade ahead of getting consistent national exposure in Lucha Underground.
When speaking to Sports Illustrated recently, Cage said that he doesn't have plans to slow down, and mentioned multiple promotions that he has his eyes on.
"There are avenues I want to cross in 2018. New Japan is a major goal on my list, and Ring of Honor is the only company I've never worked with in the United States. TNA has this loose agreement with AAA–John Morrison and Taya are worked the [GFW] house shows – so new possibilities exist."
Cage was briefly signed to a WWE developmental deal, and appeared for TNA on multiple occasions in addition to AAA, NOAH and the aforementioned Lucha Underground.
You can see Cage's full interview at this link.