Depending on how awful the queues are this is something I'd consider. Keep you on a retainer for several dungeon runs and pay you per dungeon. Like 30/40k maybe? I doubt anyone would bother for 1 or 2 dungeon runs but for 5~10 or even 20, they'd 100% consider it for time saved.

Though you'd have to be a great tank with high DPS and adaptable for a healer who will DPS as well. But I'm never adverse to people offering a service.

However this is also a perfect time for tanks to level quickly in the expansion. Everyone will be queueing for content and after a few days, most of those will be doing the 50~60~70 content. It's a tank's dream.