It depends on what area you wish to focus your research in. Do you have a research hypothesis? And if so, what general area is it in?
Most lecturers in colleges would be happy to at least talk to you if you have a proposal that lines up with their research interests (from my experience at least).
As for skipping the Masters, you’re correct, it is not necessarily needed if you wish to pursue a PhD, but it can make all the difference if you wish to apply to a funding authority for a scholarship (i.e. a proven track record in research ideally with a publication if possible, over an undergraduate degree). Although it is possible to get a scholarship without a masters.