calibers

In your personal opinion, what are some of the most underrated self defense handgun calibers?

Hello. I’ve been using this list as a reference: https://guide.sportsmansguide.com/game-guides/ It’s the best one I’ve found, so far. However, I feel that it is very much incomplete, in terms of the game species listed. For example, the following animals are not listed: pigs, alligators...