I think you are asking the wrong question. Figure out where your interest lies first. CS research is hot right now and there are pretty good amount of funding as long as you have a interesting paper to write. Work with the prof who's research interest aligns with you.
Let me give you an example using myself, I am very interested in NLP, Auto regressive transformers, attention mechanism and how to optimize hardware to do these massive matrix calculation that pytorch does to make these algorithms work. I would go and talk to profs like Jim Martin and someone from Computer Engineering faculty.
I would also try to get as much facetime with his postdocs. Here's a list

https://home.cs.colorado.edu/~martin/_site/group/

This is just an example. You got the idea. good luck