My Boulder County permit expires June 30, and my last class was about 10 years ago. Can anyone recommend a good certified instructor, preferably in or not far from Longmont or Boulder?

To avoid a lapse from the time of the renewal application to delivery of the renewed permit, I think I should submit the renewal about 60 days before expiration (April 30). So, I think I should take a class (with range time)​ in March or early April. Any suggestions?