The first Lisk side chain is there and is called Brikbit. It is the first Lisk based platform for the Real Estate industry. An industry that is worth 217 trillion dollar.
The Brik currency will be used as an Utility coin to purchase services on the brik network. Brik will be a 1st level sidechain on the Lisk platform but will also allow others to create sidechains on the Brikbit platform.
https://www.liskmagazine.com/brikbit-first-lisk-based-platform-real-estate-industry/
Lisk is presenting their relaunch tomorrow the 20th in Berlin. So better keep an eye on it's price.
For more info see: