Hey, I'd recommend the guys at Charisma Arts (
Wayne 'Juggler' Elise's Charisma Arts) who teach the "Juggler Method".
It's pretty boring and not really mind blowing, but it'll give you consistent results in terms of attracting the opposite sex and being good with people in general. In essence, you'll learn to be a great conversationalist and be "charismatic" through this method.
While there is no "method" per se, I'd recommend Zan Perrion.
He is a proponent of cultivating the mindset and belief in oneself. He's more for inner game (mindset, mentality, outlook on relationships) and body language rather than relying on outer game (methods)