I’ve seen people make nice use of piezo mics along with a room mic to have a dry and wet recording of the same take. What style of music are you hoping to incorporate the cello into? I’m sure it depends on your overall vision, but I can think of instances where it would be perfectly integrated and also ones where it would be not so perfect. I’d like to hear what you have in mind if you have an example, or especially if you find a way to do it yourself.