This is a battle of humanity. Some researches show that you will gain more when invest at lowest point using lump sum, however when is the lowest point? And if it drop further, what would you do? buy the dip or wait? I guess DCA is more suitable for most people. However do note this should not be apply to individual stock, unless you do your research and have the faith the price will recover in the future, or else buy the dip might end up with major loss.

The sanction of Russia might speed up pace of converting more electricity generation from renewable energy. So, solar, wind energy related stock should be the one to look for.
Defense stock like consumers necessities stock like P&G can divert your risk in a time whereby Fed is going to put the interest rate hike on wheels.