Case Recomendations Needed

Cases are a personal thing.
Most will do the job if it can hold your motherboard size and have adequate cooling.
For a gaming case, look for two 120mm intake fans or the equivalent in exhaust.
Past that look at your need for portability size and for quietness.

Whatever, YOU are the only one who can determine "coolness"
Budget what you need to buy the case of your dreams. You will be looking at it for a long time.