Calling a IT or LT TOP is very difficult with any close accuracy. There are several things to watch that will start suggesting that a IT or LT TOP is forming, and some times these indicators will give a good warning when a "corrective top" is about to happen. I have found that it is easier to call a TOP has occurred, early, than to call when a TOP will occur, early. Never known of a perfect system, but will share some of the things I use, and they are by no means perfect or the best, but they do a good job for me.
The charts below are reviewed almost daily and notes are kept to changes of ALL the charts. As conditions change I change "lines, channels, arrows, etc to keep me in focus as to price, momentum etc. Many times small changes in a few indicators mean more than big changes.
Charts are listed in importance of influence, in my opinion.