I recently created a HubSpot app that connects your Discord server with your HubSpot account. You can check it out here: https://conncord.com — try it, its free!
Features:
Send messages via workflows
Send HubSpot reports to Discord channels or user DMs
Import Discord members into HubSpot as contacts, including:
Discord username
Discord user ID
Discord email
Assign/remove Discord roles via workflows
I'm in the process of getting the app listed on the HubSpot marketplace, but you can still install and use the app!
In the meantime, if you have any questions or feature requests, I'm all ears 🙂