Looking for a Silver+ Club

I'm looking for a fairly active (MATURE) club that play together fairly often. I'm also going to college (21yrs old), so please understand that there will be day(s) where I won't be active due to priorities. I mostly play ADC (hit Gold1 in the past, but always ended back in Silver before the seasons ends..). I'm fairly good at Teemo top among a few tank champions I play.