The correct way would be to sell it under the editorial license!
For example, If you would make a 3D model of a graphics card from NVIDIA for news channels or educational uses, you are legally allowed to do this under editorial license.
This type of license makes use of the “fare use doctrine” embedded withing international copyright law.
If you instead sell it under a standard license, then technically you are sub-licensing and that’s illegal. Also the one paying for that license (your client) can technically sue you when he/she gets a copyright notice from the real copyright owners. For example, if this user makes a game and embeds your model within it, thinking he has purchased a valid license to do this. Then afterwards NVIDIA sue them because they did not give the rights/permissions to embed NVIDIA logo’s or product designs withing that game, then guess who’s going to pay for all the damages.
It will not be CGTrader because when you read the terms of use on this platform it clearly states the up-loader needs to be the owner of the copyright or select correct license accordingly.
So anything else is basically at your own discretion!