QI have a Swordcraft leader and a single Lance Lizard on my field. If I play Regal Wildcat's Fanfare, does Lance Lizard's "Once on each of your turns, when this follower is selected for an ability" ability trigger?

AYes, it does.

QIf my main deck, evolve deck, and glory card are based on the same universe and my leader card is Narita Taishin [A Bazaar Outing], does it fulfill the condition for this follower's Fanfare?

ANo. If your leader has both a class and a universe, you must declare which your deck is based on before the start of the game. In this case, you would have chosen universe for Narita Taishin [A Bazaar Outing], meaning it does not count as a Swordcraft leader.