Treehugger has some suggestions for anyone who might be interested in supporting lion conservation efforts, in light of recent events. In several cases, the groups are working with local populations as “lion guardians”, providing employment in economically depressed areas.
Lions may not be endangered (yet), but apex predators are vitally important for a healthy ecosystem. ETA; commenter artiofab has pointed out that in fact, several populations are indeed endangered.
Top image from Smithsonian Magazine.