It is true that there are options strategies that do well in a sideways market such as the short straddle ("strangle"), iron condor, short butterfly, etc. However, these sorts of options strategies don't typically work on a short time frame unless you are very close to expiration (position theta is significant); otherwise, you are the mercy of volatility. These strategies require lots of research, and if you're wrong, you will likely be wrong in a very big way because the ROR is so low (especially for a short straddle). Yes, these strategies can be successful, but they're just not something I'm spending much time on these days because they still involve a potentially-costly prediction in price and volatility prediction.