What are those Marketplaces where you can Buy/Sell SEO services

I have a huge list of websites with LOW DA and High Traffic. Like website with Domain Rating of 2, yes just two getting more than 50k organic traffic. I would like to sell this info so that people can outrank them with fewer or no backlinks. I have info on keywords with keyword difficulty of 5 and getting more than 3k or 5k traffic and would like to know the best marketplaces.