My favorite tactic is to wait for markets to bottom pretty heavily. After this crashes there seems to be a period in which the market becomes more or less flat, and this is where I start paying the most attention. If the price is sustained I start looking at the fundamentals and I start accumulating. My favorite alt to do this recently was Stakenet, I was buying some during the flatout period, I knew it would jump. Now im confident holding because I know it will not go below my entry point.