The following have a "working product":
- QSP in auditing field.
- Blue will release his wallet by next week for smart contract security.
- POWR in solar energy trading.
- XSPEC, an anonymous coins, will deliver his new waller version by next week.
These coins/Tokens are already working and are undervalued. So take a look at them.
Agree, I'd also add Golem to this list, it's a decentralized supercomputer and the devs are going to run the first stage in this month.