Just came off a Northbound on the Radiance. We did a post tour through Royal, which was okay for the tour in general, but had a few highlights.
If you are looking to view Mt Denali, would highly suggest Talkeetna! We stayed at Talkeetna Alaskan Lodge and had an amazing view of Denali, which we saw in full at night and the next morning. When we went to Denali National Park, never got to see Mt. Denali. The town of Talkeetna is very cool and unique with plenty of dining, shopping and tour options!
If you like animals I would suggest Alaska Wildlife Conservation Center, which is between Anchorage and Seward. You can walk around and see Bear, Moose, Elk, fox, wolf, deer, and others. If you make it up by Denali, we did the Husky Homestead Sled dog tour (Owned by Jeff King), and it was probably by favorite tour. You could hold and pet the puppies and the information they gave about the dogs, their training, and sled dog racing was amazing!