Octane Render 2023.1 is the latest version of OTOY's excellent render engine and it's one that I've found to blisteringly fast but that comes at a cost. Finding a good render engine for your 3D scenes ...
SketchUp has a good UI and the free version is reasonably capable. I haven't done much modelling recently, so I'm not sure about the rendering options, but it's under active development, and there's a ...