I’d recommend starting with turbosquid, used to work for a company and we bought loads of models from there, also sometimes we contracted the artists directly.
For companies often they don’t want to have each model with its own (different) distribution license, which is an advantage with turbosquid that anything you buy has the same restrictions that are fairly acceptable for commercial re-distribution.
Also, if you make models, be sure to…
- Model should be ‘complete’, else its not that useful, not just a head, full textured figure, textured ideally with diffuse, specular and normal maps.
- Make the models to some scale - 1m == 1.0 or whatever.
- Texture the models, show texture maps in the sample images.
- weight paint them and include an armature where necessary.
- Use some well supported format, (recommend OBJ/FBX/3DS - or all of them).
- Try load the model in another app (even a trial version), to be sure others can use it.
C-106 Delta, you say turbosquid have bad practices, was this your personal experience?