In 3D modling, creating art starting from nothing is very difficult, especially having to create characters. I have found it a lot easier to find free assets to stage just to be able to create. For those who also want to dip their toes in 3D modelling and want a head start, here are some free 3D characters I have found.

You know and love these two.
Demon Doberman
Orca

Checkout   petruz as they have a lot of good models for download, not all are free but its a good place to start.

Here are some that I am interested in and might want to play with later
Mystic
Cerberus (Fortnite)
Marvel's Venom
Rubber Dragon Drone

Here is a good collection of models and...assorted body parts
Pessoas e Bonecos (Portuguese for People and Dolls
Free Furry

Blender is my software of choice and I would recommend it as there is a lot of support but it can be hard to learn as there are many...many buttons but there are a lot of softwares out there.

If you know of any other models of resources, please share because sharing is caring.