You're making it too complicated. It's even simpler:
1. The coin has a real use
2. Having a practicality and usefulness will increase the demand for it, therefore the value will rise.
Lol. Even BTC has not practical use yet.
That's because BTC was the first, that's why OP is asking the next 100x.
1. Real use, practicality, and usefulness
2. A circulating supply in millions and not billions.