Yeah, FB is a bit of a cesspit of foul garbage, but just putting a question out there might potentially lead to a couple of pointers.
What you’re looking for is a bit specialist, it’s rare to meet someone who does the week-after-week tramping you’re after, most these days are just Monday to Friday with the occasional Saturday run in.
Here’s a thread from 2011 that is similar to your question, I don’t even know if half of the companies mentioned are in existence still, but it’s a starting point