I personally do account audits for businesses. I'll go in and look at your Facebook ad account, the ads, campaigns and websites to see how it's all working.
I find things that your business could be doing better, or alternative strategies to test, if things aren't working.
It's usually a 1-2 page simplified report of what's working, not working and what your business can do better.
I charge $1. One American Dollar.
Obviously, I don't do this to make money. It's a show of good faith with potential clients, and an opportunity for you to see a bit of what I can offer. On top of that there is useful information you can act on.
Is this something you are interested in? If not, no worries.