Any strain would do. Make sure he starts out with just one hit and waits a few minutes before ea hit. It would be easy to accidentally get too high as a beginner and then for him to hate it afterwards.

If you are in a legal medical area have him try hemp oil also.

__________________
Bukkake Bud: It might taste like splooge but shoots smiles all over your face.
When you'll suck on just about anything~think Bukkake.