Chipmixer is not recommended to use as mixer, it is detected 80-85% of cases.
It is trivial to detect coins which have come from ChipMixer due to their unique chip funding transactions, but that's not the point. The whole point of a mixer is to break the link between deposit and withdrawal, which ChipMixer does better than any other mixer out there. If some scammy centralized service is attacking bitcoin's fungibility by refusing mixed coins, then the solution is not to give up your privacy but rather to never use that service.
Try to use coinjoin wassabi, but there you have to extremly careful (there are some settings you need to apply) for a real mix.
Wasabi spies on its users. If you want privacy, you should
never use Wasabi.