Which work have you successfully delegated to part-time contractors?

We're an enterprise SaaS company at $250ARR but most of our revenue goes to client success and new product development. I'd like to free up some more time to pursue sales. What sorts of work have all of you been able to successfully offload or delegate to a outsourced worker or part-time contractor?—for any aspect of the business.

For us it is:

• Q/A
• Customer support tickets (minor items)

That's it. Other work usually requires more time to manage than the output itself. Would love to hear about some creative ways to outsource.