Well happened again with other client, we need a online catalog for clients to show the people and furniture assets

You can fit all the people in one 4k screenshot.

Beyond that for more variety I would direct them to

Posed, Rigged & Animated 3D People Shop | RENDERPEOPLE

AXYZ design 3d people models and character animation software (axyz-design.com)

Choose a few well-placed assets in the foreground and use the Enscape ones for background.

I've just posted this:

All the Enscape Asset Thumbs in PDF's by Library Category

I tried to add custom people using "create custom assets" but all models end up same position and not the material/Pictures for clothes are not pached correct.
What is the best way to create people as additional assets? or is there no way to do this, only chairs or other geometric things.