affiliate marketing's your fastest route here, no question. Healthcare traffic already has intent - people are actively hunting for solutions. I've had solid results partnering with private health insurance comparison tools, wellness subscription boxes, clinic management software (if you're linking to clinics), and telehealth platforms. Amazon Associates? Not worth it for this niche. The commissions are too low.
display ads through Mediavine or AdThrive can work, but you'll need way more volume - I wouldn't touch those until you're past 50k monthly sessions. The real money sits in high-ticket affiliate commissions: insurance quote sign-ups or clinic bookings pay ten times what a banner ad ever will.
also worth doing: build an email list off your evergreen content. That list becomes a proper asset - you can monetise later with relevant sponsorships or even sell anonymised lead lists to B2B healthcare companies (pain points, not personal data). For growing reach, I've used Instaboost on a few similar niche projects to push the social layer when branching out, but that's more for the engagement side, not the core affiliate play.