cool initiative for teams who can build product to get hired together to build prototypes of ideas for other people (that's what we're doing right now to bootstrap)
what problems/verticals are most interesting to you? or what problems have you come across in your own life that you want solved? I'd start your search there, then find companies or startups already working on the problems you want solved.
Most important, from my experience doing biz dev at zillow a few years ago, is focus on the relationship (which is why BD is hard to scale - you can't just "hand" over a relationship to someone else) and figure out how to help the other party every step of the way. Promote the hell out of your closed deals.