The first thing I would say is to distinguish between trading and investing.

As a trader asset allocation is only important in so far as it allows me to hedge and/or run a correlated/un-correlated book.

If you're a "crypto" trader, then $BTC/$ETH are your benchmarks.

But for most people who don't care about trading, you should honestly consider whether you can really outperform $BTC and how much time you are willing to spend on that endeavour.

Some sort of passive DCA'ing approach is probably best suited to most people, and while there's a good discussion to be had about which is the best DCA approach, from a psychological perspective you're better off following a systematic DCA approach than one that relies more on human judgment.