How you Guys pick the stock for day trading?

What parameters you guys use and also do you guys use single time frame for whole time or multiple time-frames.

I usually look for stocks that have gapped up or down in the premarket by more than 2% if I’m trading from 0915 to 0945. If I’m trading after 0945, I look for top gainers or losers F&O stocks.

I use 5 minute and 1 minute charts.