That's the role of applying strategy in every house edge gambling games, increase the fun factor to think that chance of winning is increase even by a bit. Well I believed we just don't want to bet our money easily without any tactics even we all know that house always win. 
You're right about the role of strategies, lots of people get great entertainment out of constantly developing and enhancing them.
A house edge gives the casino a statistical advantage but it is a common misconception that the house always wins. It is possible for players to win as well and indeed if that didn't happen then gambling wouldn't exist. The reality is some players win and others lose, the house takes so many bets that the variance evens out and over a long time period it will come out on top.
Don't believe me? Check this guy out: https://www.crypto-games.net/player/Kirkby543
I don't think you will get one strategy which can work for you in the long run.
A strategy won't even reduce the house edge. Luck is the only thing that determines if you win or lose.