Has anyone tried or purchased the EdgeZones indicator from the Edge Trading Group (owner and founder is Anthony Drager)? https://edgetradinggroup.com/software/
He markets these as "real-time" support and resistance based on real-time order flow.
He claims that the indicators provide good price points (both "where and when") to enter and exit. However this indicator costs $49/Month for NT8 and $69 for SC. I'm having a hard time seeing the value of a monthly cost for an indicator, no matter how good the indicator (especially at such a high monthly cost).

Anyone know of a set of indicators that basically provide the same functionality but for a reasonable one-time cost?

High monthly cost? That's only 1-1.5 points profit per month on the ES off just one contract.
Why don't you try it for a month and decide after that whether you covered its cost or not. Surely better than paying a larger upfront one off fee for something similar then finding it doesn't work for you.