So I have a 2011 RS v6 Camaro, when I search for parts and such online, RS is Unavailable, my only options are the LT, LS, 1LT, 2LT or the 1LS, which of these corresponds to the RS?

This would be the car

 

According to a 2011 showroom brochure, the LS model was not available with the RS package. The fact that your car is a V6 Camaro would mean it has to be a 1LT or 2LT to have the RS option because the V6 was not available in an SS.

 

Not sure if you’re still looking for clarification on this, but just in case: Yours is most likely a 2LT. I have a 2010 RS, but it is titled and labeled by insurance as a 2LT model instead. The RS package is essentially only an appearance package. I also verified this with the original owner, who happened to be the salesman that sold me the car.