Small anti-freeze leak every Morning after starting car

I have noticed for a while now the smell of antifreeze in the air when I was driving my car. There were no leaks on the ground but I finally found the area where the leak was coming from. It comes out from the end of one of the radiator hoses (where the thermostat is located) as you can see in the picture. The crazy part is it only leaks a little bit in the morning and throughout the day when I check it after driving it around it does not leak at all only briefly in the morning. I did a few things that I thought would stop the leak. The easiest thing I did was swap out the radiator cap but that did not solve the problem. The next thing I did was change the thermostat but again that did not solve the problem either. The last thing I did was flush out the coolant system of any debris and added fresh coolant. None of these worked and it still leaks every morning. Does anybody have an idea what it could be? I thought it could have been the water pump but I am not so sure. My biggest fear is it could be the head gaskets but my car does not overheat or smoke. Someone please help.