I don't use these per say, but here are a couple starter systems.

1)
MACD crossover above zero line
volume (daily) 20% above previous


2)
MA 50 crosses above MA 200
OBV rising last 2 days
RSI (15) below 70

3)

RSI(2) below 2
lower candle shadow 2 times as long as body
high volume previous 2 days

Even a caveman can do it? No, but a start.

add or subtract as needed.....

Disclaimer: I don't use these.