Is there anyway I can get a archive of theses
or something I would like to practice
Just do them yourself. The person who used that is using Loomis as a reference.
You should really be studying from real life to be honest.
But, you don't need stuff like that. You just need to learn anatomy by studying Paul Richer or Loomis.
If you want to be able to build the base mesh for that, you can look at this https://www.youtube.com/watch?v=spi4lGxnMZg
If you search turnaround you can find a ton of what you are looking for. But, I would learn proper anatomy before stylization.
Being able to draw your own is immensely liberating. Otherwise google animation model sheets, and get stuck with whatever is available.
>But, I would learn proper anatomy before stylization.
And you should learn figure before anatomy