Me personally would use Fibonacci retracement, how bout you?
Choosing Fibonacci is not bad at all because you can clearly determine whats the buy zone and sell zone for the current trend but your trades will highly reliable for a correction since Fibonacci is good on when theres already change on the trend so you will always for the current trend to end before you can set a position unlike indicator like BB, MACD and RSI which gives you a sign if there will be a big movement that will be happened soon.
Chart pattern by using lines is still the best tool on trading even without indicators.