Most likely what will happen after topping is the plant will fork into two large branches at the closest node to where you topped the plant. The plant will still try to grow mostly upwards with these two branches, and they'll probably grow their own suckers. This is assuming your plant is indeterminate.
I usually don't have much luck with topping off a plant, then trying to root the cutting from that. I'm sure its possible but I usually just throw it in the compost bin.
Deng Xiaoping and the Transformation of China by Ezra Vogel is very thorough and detailed, and it mostly spares you the annoying moralizing that a lot of English-language authors feel compelled to use when writing about geopolitical rivals. It's like 700 pages so be prepared but all in all a good resource.