The strongest teams maybe the surburban clubs surrounding Denver, particularly on the south west side of town. If I name clubs which I think are best, I risk offending those I leave off the list. The best I can suggest for you, find the part of town you like the most. Look at the club listing on this web site for the club in your area. Meet with them and pick the organization that most meets you objectives.
Most clubs are understaffed and over worked so they love to have help.
If you happen to pick the foothills as your desired home, we would love to have you.