I have been using
NEW MEXICO REGISTERED AGENT | $35 A YEAR but most of them are part of the same nationwide network of registered agent.
Some will provide limited mail forwarding included in the price, some will not. The job of a registered agent in the US is minimum, and I don't know if there are good or bad ones. That is definitely a service where I will go with the lowest bidder. Unless you are looking for additional services like virtual office or premium remailing, I wouldn't worry too much.