I don't use indicators often so i am really not right person to answer your question, but there are some good built in indicators in MT4 itself you can try those and find out which suit you most and use that in your trading. You can also look for third party indicators by goggling. there are some very built in indicators in mt4 itself you can try those and find out which suit you more and use that in your trading . you can all look for third party indicators by goggling. personally i prefer moving average indicator.