Some things you can do in bulk (economies of scale), outsource, schedule, or otherwise automate.
You can create pipelines that save labor - like clients for platforms that make answering common questions / interacting with users way more comfortable and suited to your targeted workflow than the default clients.
On the creativity front, you can also generate random, semi-plausible stuff to inspire you when you're in a rut.
It's not quite about making everything automated, but about leveraging code, systems thinking, and collaborators in such a way that your performance is incredible. It's really feasible.
Also, it’s not only about content but about proper timing and strategy in your communications.