Mixamo is an Adobe product and all the 3D models available at Mixamo are free to use for personal and commercial purposes.
Mixamo
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Itch.io is a market place for indie games. You can buy games for all platforms on itch.io. It also has lots of game assets hosted on it for free.
ITCH.io
2
Artstation is complete store to buy creative collections. You can buy tutorials, game assets, pictures, art brushes, 2D art, books and comics.
ArtStation
3
CGTraders is a huge collection of premium 3D models. Though most of their assets are paid they also have a collection of free 3D models.
CGTraders
4
If you are looking for 3D models then TurboSquid should have definitely crossed your search result. It’s a collection of free and paid 3D models for all type of purposes.
TurboSquid
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Gameassetsmarketplace is very similar to any game asset store. They have all required free game assets like 2D, 3D, audio, GUI, VFX.
GAME ASSET MARKETPLACE
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Game dev market is an indie game asset store when indie developers can sell their assets. It has collection of 3D,2D, GUI and audio
Gamedev Market
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Kenny is a collection of different types of free game assets. They include 2D, 3D, audio, environment and UI assets.
Kenny
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Sketchfab is a collection of 3D models of all sorts. Their 3D models can be used for different types of applications like 3D printing and games
Sketchfab
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Free 3D is an awesome place to get free 3D characters. But, it’s not all Free. Even though the name is Free 3D not all models are free.