Might be too much for them right now but any of the vape pens with a pure Indica. I like them over the gummies because they hit far faster and more reliably so you can take a quick inhale and lie down and you'll feel it in 5-10 mins and feel great falling asleep shortly after.

That said they are strong so if its someone totally new to THC it will be a bit much. If they are a lightweight but know what to expect you can get used to it pretty fast using it before bed. This was basically me, total pot lightweight, never could enjoy it until I could get ahold of a consistently dosed product to take in exactly as much as I wanted.