Here is a system I am trading live at Exness (check them out: Best broker!!) https://www.exness.com/a/t4grn4gr
4hr TF, also good for daily. You can start entering with more than one trade too, but I suggest to wait for the colour change for a single entry. Be careful in the middle, but you can use SR to pinpoint entries and exits as well. Practice first!
Settings on Buzzer: I use 16, 18 or 20. Shorter in-out trades 16, if you want more smoothed trades use 20. Experiment until you find your fit!
Start on 4 hour setting 16.