Hello, about your question:
1. You can just tame any found fapets (if you know how to, best to find their recipes or buy them from Black tamer woman)
2. You could use some savefiles to have most of the fapets captured.
You can freely check the videos in game's description with gameplay walkthru (includes free and story modes).
Please check the discord server for te save files or help on gameplay https://discord.gg/tzs9mmAt8r
Cheers,
~NK