Hi,
If you stay on Developer support plan you could post question here and then if necessary a support person will create a ticket on your behalf.
This has already been occurring. For example, person with Developer support asks question here, it is determined that something needs to be done in Azure backend to fix issue, so they provide subscription details via private message and ticket is created for them.
NOTE: Microsoft recommends Standard or higher support plan for production use. They had this recommendation even before the recent change to Developer plan.
Standard or higher allows you to create higher severity level cases if necessary, which provide faster response. Even when Developer still allowed you to create support tickets via the portal you were limited to Severity C only, which is 8 business hours response. Standard allows Severity A (1 hour), B (4 hours), or C.
The other option would be to wait and only upgrade your plan to Standard if/when you need faster response.
Please click Accept Answer and upvote if the above was helpful.
Thanks.
-TP