Likely will depend a lot on what you like, what your basic plans are (a lot of people have a dream of one fish or coral or similar and the environment and therefore stocking reflects that decision) and what your kit and set up actually is. There are a whole load of different shaped 30 gallon tanks out there and a whole load of different LED strips, with high power sets and lots of low power bulbs, all creating different effects.
So, tell us more, what do you have, what do you plan and what do you mean by innovative.