If you're looking for plugins that provide a drag-and-drop interface to render 3D models in Rhino7, KickRender is a great option. This plugin uses AI to make rendering easier, faster and more accessible. It's got drag-and-drop interface, the ability to import images from other software, and rendering with descriptive prompts. KickRender is a $29/month subscription, with a free trial and flexible subscription cancellation options.
Another option is 3DFY.ai, which lets you generate 3D models from text prompts or single images. It's got features like quad-meshed topology, high-quality UV maps and physically-based rendering materials. The service is intended to democratize 3D content creation, making it easier and faster for individuals and businesses, and it works well with Rhino 7.
If you want something more general purpose, check out Meshy. It's got text-to-3D and image-to-3D abilities, along with AI texturing and automated PBR map generation. Meshy is good for AR/VR, gaming and digital design work, with a variety of export formats and an interface that can speed up 3D content creation pipelines.