The onset is pretty fast because it's going straight into your lungs and bloodstream. Within a minute of inhaling you'll notice the feeling.
I would recommend talking to a dispensary about what you're looking for. If that's not available, try talking to your dealer or someone who knows more about smoking in your local area so you can get some reputable information.
Generally speaking, it sounds like a mid strain is what you're looking for. Roll some .5g joints so you can smoke them in littler portions.