From what I have seen for the past 3 generations, the most popular and arguably most successful playstyle for Dragon is Hyper-Offense and I don't think there is any need to change that. Idk about finding a niche in the type tbh, I think you shouldn't worry. Dragon has almost always been a strong type and if you master it, you should be a reliable player irrespective of what gimmicks you use.I need some help and I feel like im stuck. I am part of a gym league and was given Mono Dragon and I can't find a niche. I have looked all over and I feel like all I have found has been that, they are all sweepers or Revenge killers or wall breakers, Is there any walls? Should I even worry? Whats the best way to play Mono Dragons? I have been trying to find a Guide that could maybe break it down more for me to understand how best to play them and I haven't been able to. If anyone could help me out it would mean a whole lot to me.
A good starting point could be to consult the Viability Rankings under the Dragon section can help you understand the top threats in that department. For further information, I would advice you to watch Dragon replays of Mono Tours or Mono Circuit Tours to see how other players use it at a competitive level like LaPatateDouce suggested.