1994 Ford Explorer external coolant leak

I am leaking coolant somewhere near the top of the engine because I see pooling of the coolant just behind yet lower than the alternator. I have just replaced the water pump thinking that was the prob but obviously I still have other issues. Anyone out there ever have this happen? I hope so because I could sure use advice right now…Thanks

Best to go to someone who has a pressure tester or rent one and check the system under pressure. Fill the radiator level with coolant and pressurize the system to about 17 lbs. It may be a core plug or freeze plug but the tester will check it. LEE