Actually, you can teach him to be an emcee, and or, singer. There are lots of great community college courses that offer courses along these lines. The best advice I have is to have him look into courses in broadcast news, which will provide him with the proper phrasing techniques to be an emcee as well. I took a course called "Voice and Articulation" at the local community college, which was provided by a local jazz singer. It was a great course, and for me, it was highly beneficial in improving my breath techniques and song phrasing diction.
Now, getting a job as an emcee will be a challenge in itself. You can have the best voice in the world, but getting your foot in the door in this business can be very difficult. Usually the first step is to get a job at a small radio station as a newscaster. It will not pay very much, but he will get some great, on-air experience. After a couple years on the air, and recording local commercials, he might get lucky and be able to work his way into a larger station, then pick up some voice-over jobs. I was able to do this, which eventually led to me emceeing the largest fishing/boating expo in the mid-Atlantic region. The job paid very well, and I had that job for 25 years. However, that emcee job was only 4 days a year. I tried to get into the wedding hall emcee business, but after trying for a couple years unsuccessfully, I gave up.
As for the singing aspect, well, Cass, you know how fickle that business can be. If he's good, and he could well end up being quite talented, he'll have to pay his dues as a business person as well. He'll have to be a salesman, PR guy, bookkeeper, accountant, soundman, etc..., all balled into one neat package. If he's willing to do all that, well, then maybe he has a shot at it. But there's nothing online that will teach him all that stuff. Like Donny said, a lot of this has to come from within. You have to really want it, and there is no short cuts, no instant gratification.
Good Luck,
Gary
