I am right handed left eye dominate... Here are the guns i like. I like Mossburg pumps, 500 &835 because the safety is universal Up top. Never used the safety on my 870 because it was too hard to use when duck hunting. Lever guns are good/ I have a 30-30 Win that i love, LH cousin has an 06 top eject on both of them. I bought an LH rem700 06. Choices are much more limited on LH bolt guns. I would think an excellent way to get you boy started would be one of those multi barrel youth single shots. .243, 12 g, .22lr Seen some of them on sale in the classifieds...