EMS Recruiters are a good idea, as long as they are honest, and dont simply wave the glory flag. a good recruiter will discuss all the aspects of the career, not just the good stuff, but things like the continual boredome, and all that rot.
Better than recruiters are providers who seek out those who they feel could do the job. I regularly asses people i meet, the main thing i look for is compassion, that and a little brain power and they will thrive in this proffession, Ive recruited dozens myself into classes, and for the most part, the classes have weeded out those i was wrong about.
Keep a running list of who is putting on what classes where, the costs, the time commitments, so you can talk people into this. recruiters will only fill classes with bodies, providers can fill ambulances with EMTs