I divide cryptocurrency into bitcoin and all other. My strategy is to increase the number of bitcoins in my portfolio. From other coins and tokens i'm most interested in ether, polkadot, solana, avalanch, near.
Bitcoin has a limited amount and governments print a lot of money without any limits.
of course you are very lucky to have bitcoin and even increase, where we know that the price of bitcoin is very expensive and only certain people can have it.
indeed more people invest in altcoins than bitcoin, because of the high enough value. makes people discouraged from being able to buy bitcoin, the same as ethereum of course.
You're right that ADA, BNB, DOT are very good at the moment and plus the newcomers you say like SOL, AVAX, NEAR are also worth noting as the improvements are pretty good too. even though the new ones have to be more careful because they might not be able to survive.
but by the end of this year it is estimated that bitcoin will increase so it is certain that altcoins will also move up. so everything you say could be profitable if bought now to be used as an investment.