They stock this small lake with “largemouth bass, bluegill, pumpkinseed sunfish, crappie, and rainbow trout. The lake is stocked with trout in the winter for ice fishing.”
You can see what fish are in there any particular season at https://www.clevelandmetroparks.com/parks/visit/parks/mill-stream-run-reservation/ranger-lake.
The parking lot (directions here) is small, and this little lake has maybe 100 feet of shore fishing. This looks to me like a good place to put in a canoe or kayak, which you’d need to lug maybe 75 feet.
You will not see any fish caught in this video. We stopped by after an early morning rain and right before another rain—less than ideal conditions for chasing panfish and bass. But, this video will provide you with a view that will help you judge whether you want to visit Ranger Lake. For sure, I’ll return to try it again—with a kayak, and maybe even a fly rod.