You should try
(1) kaze no stigma, ( kazuma the main character doesn't have a potential for controlling fire and his whole family is about controlling it, he gets kicked out of his family and comes back years later, while controlling wind ). ( awesome anime)
(2) history's strongest disciple kenichi ( well its about a kid who is a scardy cat, is in karate club and one guy wants to get him kicked out, he ends up beating him and many enemies end up coming, what will happend? )
eh i dunno if you can find these dubbed but you can find
(3) Great teacher onizuka ( its about a guy who rided motorbikes, was a top notch and after he grew up decided to be a teacher, or at least try, its really fun to watch and dubs are awesome. ) ( i prefer it dubbed since dubs are awesome for that anime , also for short GTO, but you can find it by the name above ).
if you watch ecchi with good action and fun you could try
(4) high school of the dead ( legendary anime, fighting zombies can highschool kids survive ?getting season 2 this fall 2013 ) and
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5) one piece ( if you are into adventure action, this is by far my best adventure/action anime ).
(6) Black lagoon ( gun action anime ) or you could try
(7) Beelzebub ( about a guy who gets stuck with demon lord kid and he is fighting second and third years in his deliquent school, he is aiming for the top, what will happend? )
(8) Bleach ( same like one piece lots of action but has fillers too, its about normal high school boy who gets saved by shinigami, later on shinigami transfers her powers to him so that he could save his sister, what happends to him? ( Watch to see :P ))
(9) Freezing ( I won't write description for this one, its lots of fun with action and has ecchi too, main character looks weak but you'll see how awesome his powers are when he uses them ).
(10) Accel world ( since you watched sword art online, you should watch this too, light novel writer is the same, also it has connections to sword art online, well you can't see that connections while watching anime but actually its suspected that main girl character from this anime is kirito and asuna's daughter. )
(11) Ao no Exorcist ( Main character is satan's son, will he obey him or go against him? )
(12) Clannad and (13) clannad after story ( if you liked angel beats you might like this too. )
(14) Fairy tail ( action anime, really fun but not for everyone, main character is dragon slayer, and all the dragons disappeared from the world, and he is looking for his dragon while he meets a girl who wants to join their guild ( guild name is fairy tail )).
(15) DearS ( Comedy, Ecchi, Romance, Sci-Fi, Harem, really fun to watch, i don't want to spoil it )
(16) Full Metal Panic! , (17)Full Metal Panic! The Second Raid and (18) Full Metal Panic? Fumoffu
( its about 17 year old military soldier who works for MITHRIL organization, his mission is to protect the girl which possesses some special powers.
(19)Sora no Otoshimono (20) Sora no Otoshimono forte ( is also really good anime, main character is perv but is having the same dream since he can remember, one angel/woman is talking to him in dream and he finally meets some angel like creature who can grant his wishes, meets more of them later.He only wants peaceful life but he still can't abandon her).