The short answer is: all of them. :)
If you look at the skill description, it tells you which knowledge applies to which creatures.
If the Inquisitor wants to know something more than the basic abilities of the more common creatures, ranks in the appropriate knowledge skill are needed.
why doesn't pathfinder have a search of monsters by there different culture. You can do it by there Cr,terrain but what if I just want to see all the Asian creatures from all the books? is there any set up for this?
why doesn't pathfinder have a search of monsters by there different culture. You can do it by there Cr,terrain but what if I just want to see all the Asian creatures from all the books? is there any set up for this?
Think that would also be to much info. You have creatures that are found in all areas of the world, while others only certain countries, and others still certain cities. Mixed with the fact that Pathfinder is constantly coming out with new content and tries to keep it open for both PFS and personnel play while making new modules that might create a new monster only found in that one place (IE a mad scientist tries to make a new gelatinous cube out of candy and makes the first and last Gummy Monster)
But if you want to you could always create a page specifically for that
One thing you could do is take the feat "breadth of experience." It gives +2 to all knowledge checks and let's you make them untrained. Your class skill ones become even better, and should something come up where the knowledge check isn't a class skill, you still have the chance to make the check to learn its weakness.
For an inquisitor looking to identify monsters improved monster lore is much better. It gives you +½ level to identify monsters. If you are a half orc use the favored class bonus of+ ½ level to monster lore for a total of +1 per level.