If you like streetlight manifesto I would suggest listening to old Catch 22 (Catch 22 Keasbey Nights album > Streetlight Manifesto Keasbey Nights album IMO), Reel Big Fish, Big D and The Kids Table, Skanking Pickle, etc.... If You want to stay with similar song structure, lyrical style, and general attitude then try Against Me!, Hot Water Music, and Lawrence Arms. TLA is further out there but if you have listened to both bands (Streetlight, and TLA) extensively like I have I have come to find that deep down they share many similar structures, musical attitude, etc...
I'll put two very different bands that I like here, they are The Lawrence Arms and Sigur Ros