Offline
It's been a fascinating time for the AFL with the expansion looming, expansion teams rising in both New York, St. Louis and Boston. As for the name the team contests.
Dallas/Texas: I could potentially see themselves angling themselves as "Texas' team" especially if the Houston PAFC team flounders about in mediocrity, with AFL's more prominent marketing Dallas could definitely do it. As for names, I could see themselves going in directions like Bulls, Wildcats (referencing Oil), or depending on his company's background he could with something like Manticores or Minotaurs.
San Francisco: Another blank slate for names here yet, could reference the Gold Rush with a weird name like Sourdoughs, could do Grizzlies or Condors with an emphasis on being a more California-centric team. Could do a different angle with the "summer of love" rising, something radical could be on the table. Could be something as simple as Anchors or Sailors with the Bay right there.
Offline
San Francisco Imperials for Emperor Norton could work.
Offline
For Dallas, I like Coyotes. They're a wild animal that are in the area.
For San Francisco, maybe Gulls. They're the most prevalent bird in the area, gives you a gray and white color option to start and build on (if you go actual sea gull colors). Either way, I hope they use a foghorn like the Vikings in the NFL use their viking horn.