I have tried Upwork, Fiver - Both are very big and global. Eventually you'll have to find a great Dev from an off-shore country and retain them over time. I have seen multiple off-shore candidates who are super good that work at reasonable hourly rates.
One thing with Upwork, and I was helping a project awhile back where this was the case, someone with a high tech social profile will post. They will outsource the work to someone at a much lower rate. The last of these projects I was involved in, the individual had a very high dev advocate type profile, the outsourcing was to Pakistan. Rather than outing things, I just chalked it up to learning and being more aware f…
Upwork has a system where you can track clicks per hour & screenshots every 10 mins along with other details.