No other information has been shared about this cryptic question, though Newsarama reminded us that Angela was a recent member of the Guardians. Plus Dargo Ktor, the 26th century Thor, once fought alongside the original Guardians of the Galaxy.
Otherwise, there haven't been any Asgardians of note with ties to the Guardian of the Galaxy.
So who are the Asgardians of the Galaxy? I have no clue, but I'm hoping that Frog-Thor is one of them! After all, the Guardians are composed of some of Marvel Comics' more diverse and alien creatures!