Backstory: Lately I've had a lot of open and honest mental health conversations with business associates. The idea of seeing a therapist is becoming less taboo and more accepted.

The Idea: A marketplace to post and find mental health professionals.

Deep Dive: Taking this a step further than a "marketplace," you could build something similar to clutch.co or trustpilot that allows firms to embed their rankings on their site. This adds a lot of value for the mental health professionals.

For customers you have to make the searching and filtering user friendly and fast.

Validation: The two marketplaces/review sites mentioned above have a lot of traction for technology firms and online businesses.

Monetization: You would charge a monthly fee for professionals to have an account. You could adopt a freemium model where they don't pay unless they have over 10 reviews and x views per month.