AI for sales & marketing...what' the latest? (I will not promote)

I'm part of a B2B SaaS startup and we are about to start pushing sales & marketing. I have been there before 2-3 years ago, and most of what i remember is a "data nightmare". Finding contacts, pushing them from one tool to the other, tracking follow ups, trying to create an effective funnel.

I get the chance to do it again, and this time i want to automate everything i can.

So what's the latest on AI for sales & marketing?

How do you guys autome things?

How can we do things with AI that would have been 3 interns three years ago?

I will not promote