@Ashwin Venkatesha, thank you for reaching out on Microsoft Q&A.
As mentioned here Microsoft Sentinel solutions include packaged content, integrations, or service offerings for Microsoft Sentinel. This guide focuses on how to build packaged content into solutions, including combinations of data connectors, workbooks, analytic rules, playbooks, hunting queries, parsers, watchlists, and more for Microsoft Sentinel.
It has also mentioned reaching out to the [Microsoft Sentinel Solutions Onboarding Team] if you are planning or building another type of integration or service offering or want to include other types of content in your solution that isn't listed here. As you are planning to include an Azure Function in the solution, I would suggest reaching out to [Microsoft Sentinel Solutions Onboarding Team] for help on this front. For more details, see Feedback section of this doc.
Hope this helps.