Need advice from on our SaaS project

Hello. I was looking at the deals website like stacksocials, Saasmantra etc but a bit confused. I'm looking for suggestion and advice.

Do you think will it be worth to get in partnership with these kind of platforms? I don't know what and how will they charge. It would be great if you could suggest me what will be better and how much they charge and on what basis they charge. Our project is a self funded project and reaching out in the market is very tough for us.

If you could suggest me how I should work on selling our retatgeting service would be really helpful.