There is a huge ask from the customers on the ability to do facebook ads and generate leads from Facebook ads or google ads directly from the system.
E.g. Exponea which is a great tool that easily integrate with many social channels.
https://docs.exponea.com/docs/facebook-ads-integration

Hopefully the link above will give an idea the kind of integration we should look at and also closing the loop to capture these leads in D365 marketing