1993 Ford Bronco leaking colant

Best way to track down a leak is with a pressure tester, but if it's from the bottom of the engine, inspect the freeze plugs, these are round metal discs that over time corrode and leak. Replacement trypes incled an easy to use rubber expanding plug, remove all of the old one and install the new one, I do prefer using the metal one, the rubber ones sometimes blow out! Your choice tho.