Ever since btc crashed from the $6000s down to the $3000s it has been a great time buy up.
In these kinds of conditions however, it is actually best to just stick with btc.
It will minimize your losses and typically, in the end, brings you the most profit.
When you cash out, you basically have to go through btc anyways.
so your alt needs to outperform btc.
You will find that unless you time it right, alts rarely do this in the long run.
There are many times when they outperform for a slight period of time.
But most of us are hodlers in the longterm so it is more advantageous to get btc.