1. You need a strong growth email marketing campaign.

Scrap a list of emails.

Reach out to them and offer something for free - like if it costs $20/month to be on the marketplace, you could give them 6 free months - just an example.

They will reply. And you will onboard them.

2. Consider settig up an affiliate marketing strategy where you offer a % to those who bring you leads. There are so many platforms there you can list your referral/affiiate scheme.

Let's chat for more.