You can outsource many day-to-day marketing tasks to a Virtual Assistant, or better, a human-powered by AI (see an example here).
I don't recommend automating anything that benefits from real insights about your audience or product to be authentic (like commenting on social media posts or blogs) since your real focused engagement will have much better results.
There are many things though that you can outsource where the quality does not have to suffer, or might even improve.
Here are a few examples:
Mystery shopping your website or online presence and reporting issues