Each of us are individual - what works for me probably won't work for you, which is why I don't like giving specific effects for advice. The best thing you can do is let us know what sort of thing you're interested in - a particular style, a particular magician, a particular plot, and go from there - and a little bit about yourself. From then on, if you want the best effects, it's up to you to make your effects strong. My strongest effect, performed by you, wouldn't be your strongest effect, simply because my effect is tailored by me, for me.
All that said, you can't go wrong with a Vernon book.