The creation of Database-specific actions would greatly improve my chances of convincing the client to move from SPO lists to Jira Databases 
One Jira Automation action I can think of with a wide range of uses would be 'Create entry in Database' or 'Update Database Entry' - we already have the action to create a Page in confluence in an automation chain, but being able to streamline the creation of a row in Databases would have a dramatic effect on the products overall adoption potential.
Does anyone else have any automation integrations they've thought of, or any workarounds they're currently using with Database to streamline the data entry?