Q: Overheating and boiling out the reservoir.

The issue started with a heater hose busted so i replace it and it was still overheating. Second thing i tried was the thermostat still overheated. Third thing was bypass heater core still overheating. Now i replaced the water pump and still overheating. From what i know i only have left to change is the radiator which i have just dont want to put it on and it no be it. The coolant looks clean and green so its no dirty. I squeeze the left bottom hose while its cooling from overheating and i hear it go back to the reservoir. I squeeze the top right going to the thermostat and same but hose is much hotter. What ends up happening it that it overheats a boils out the reservoir. Also is there a way to position the thermostat wrong? mine doesnt have a bleeder valve its a MURRAY. Any advise?

My car has 220000 miles.
My car has an automatic transmission.