To me it seems that we are seeing a general downwards trend in crypto currencies and other asset classes. Inflation is rising and the economic outlooks are not that great for most countries. We just got out of the covid mess and now things are looking bad again. Usually these are good times to buy, when the majority of investors is looking for a way out there are opportunities to profit. Buying a variety of the top alt coins is a good idea. When prices will recover alt coins are expected to outperform other assets, but they also have more risks. If you don't need the money right now than go for it. Personally I want to add some more BTC and ETH to my portfolio. Hopefully I am getting mostly cash for my birthday next month, than I can put all that into cryptos.
I think buying altcoins should be followed by buying bitcoins because bitcoin serves as a kind of diversifying asset in this regard. It has not lost that much lately compared to altcoins, which have lost 70-90%