Mistwell
Crusty Old Meatwad
No?
If it's in the MM it's up to the DM whether it's available.
Furthermore, if you need a guide just to be able to pick a usable companion, that should be the biggest red flag you can get short of the class literally causing players to explode.
I don't need a guide to be able to pick a usable companion. Most people in this thread don't need a guide to pick a usable companion. But given your post above, which didn't mention most of the usable companions, it seemed YOU might get something from a guide.
Flying snake and Giant Poisonous Snake (which are both great companions) are both in the Basic rules by the way. You didn't mention either, though they're often considered the best companions to do the thing you seem most interested in doing with animal companions, which is attacking directly.
I say again - it might be helpful if you got more experience playing this class you're so upset about. I am trying to help you get the most out of this class you think isn't doing enough, and your responses seem to be routinely dismissing anyone who tries to help unless that help is replacing the existing class. Maybe consider other ways?