Current sentiment and greed tends to create a hot sector of the moment. It could be BNPL companies, nickel producers, gold producers or fintech. I'd suggest that you collect a batch of stocks that represent the main sectors and monitor them for your trading setups. You'll need to be able to go long or short so you'll need access to CFDS for shorting.
Another way to gather stocks to trade is to scour the morning news announcements before the open. Select a few companies with very good news and very bad news and get ready to trade one or a few of these. You've got to follow the volume on the day or anticipate where it might be.
You've got to respect the longer term trend, short term trend and the daily sentiment. Your setups need to be simple, yes no, not maybe. You've got to be able to consistently create a batch of results that are profitable.