This is suprisingly lomdishe conversation for a shidduch thread.
I am not a dating expert, but one random try is to see if any boys are available in nearby out-of-town communities. Example Chicago – Cleveland, Milwalkee, Detroit etc, Though these communities might also have more girls than boys; however, older boys have probably been dated or either side has decided not to date the ones available. At the same time, the boys likely do not want to travel to NY/NJ either. Worth a try to contact those towns shadcanim.
If one thinks – well if no one wanted to marry them, so why would I?
I wouldn’t say this to the person…but the answer is and how old are you? But you are still a nice person.