Start with the easy-to-fix solutions, like re-torquing bolts. Then spray it all down with soap, rinse and watch carefully. Maybe a hose is dried out and lost its seal. Be patient, a few drops lost is no big deal. Take your time and isolate the leak.
Years ago my Wrangler TJ was dripping oil from the rear top, maybe a valve cover gasket. Luckily I first retorqued all the valve cover bolts, and several were loose. After tightening the prob disappeared!