If don't know maybe this can be your main render engine https://indigorenderer.com/features/technical

CPU and multi-GPU rendering

Fast, unbiased CPU rendering.
Achieve blistering rendering performance with any OpenCL supporting GPUs.
Supported on Windows, macOS and Linux, on Nvidia, AMD and Intel units.

Or
https://www.thearender.com/

But there is a free one https://luxcorerender.org/