Hey Greg,
I manage some long term rentals in the Anchorage area and while I used to manage a few Air Bnb's I don't anymore, just not my cup of tea. That being said, it was pre-pandemic when I managed them but it was always very easy to get renters and we stayed booked up during the summers without issue for the most part with minimal downtime.
The location is a big thing for most people, and most will want to be in the downtown area or close to it from what I have seen. These places tend to run a bit pricier, but nothing crazy, access to trails or water is also a big thing. If you are willing to expand out the Kenai Peninsula is also an excellent area for short term rentals.
You will probably get a few renters in the winter months, but summer is really where you will make your money. I would actually recommend a longer term rental during the winter months on a month to month basis and then Air Bnb in the summer. We get a lot of travel nurses, doctors, etc who are always looking for a furnished place to stay. There are a lot of websites for travel nurses you could get on with for easy renting.
Definitely get a good Air Bnb Manager. They will make your life incredibly easy. I wish I had a recommendation, but I regrettably do not.
Although for the purchase I do recommend @Jamie Rose. Typing on my phone so no hyperlink regrettably.