Although EUR/USD has been trading in flat for almost a month, it is not a cause of worry as such a thing happens almost every year, right towards the end of the year and before the beginning of a new one. The situation will change only when the pair undergoes false breakouts similar to the ones presented below.
In this situation, when sellers are knocked out and buyers are allowed to enter the market, the best trading move is to take a short position with a target at 104400. This follows the framework of the Price Action and Stop Hunting methods.
Good luck and have a nice day! Don't forget to control the risks.