There are a few data points I'd like to pull together from all of our customers so we can have a better idea of how to reach and connect with future customers.
1. Where did they come from and what did they look at on our website before and after they converted?
2. Did they come back to the site after they converted and if so what did they do on the site?
3. What emails did they open, click, share and when did they unsubscribe if they did?
Some of this we can get from GA but not specific to our customers or our email campaigns. I can't find a Hubspot report that captures all of the details that I can see in individual contact files so that I can build a picture of trends. Does that exist?
What HubSpot products and subscription do you have?
Depending on what tools you have access to, where your website is hosted (by HubSpot or externally), and what subscription level you have will vary the best next steps.
Once we have this information, the Community can give more insight!
There is no one report that you can pull to gather this data. I do agree that the attribution report is a good starting point. While I can't tell you specifically what report you would want to look to build, there is a lot of data in there.
It's likely you might need the reporting add-on to get as detailed as you'd like. You can light up a trial of that to see if it helps you.