How to do online marketing using AI to promote our content

We have more than 10k blog posts which we want to share on the web like through social media sites etc. We need to build some kind of automated system/bots whch can promote this content the web. We effectively want to replace our 2-3 marketing people with ai agents/bots. You don't have to build something from scratch, I think there is already n8n, make or AI browsers with agents etc. You just need to help us to build processes so we can replace our marketing work which is manual now with AI agents/bots/scripts/systems Please only reply if you have done similar work before.