Basically you are referring to the issue of diversification, it is something very important, when you rely on diversification in the crypto world altcoins come out, which can be an alternative, but you should not forget that they all depend on Bitcoin directly or indirectly . According to the Book of a random walk on Wall Street, they advise diversification in its last part, but today diversification must exist outside the crypto world, that is, you can diversify your money with gold, silver, some shares of the stock market, already that if you put all the diversification in altcoins, the moment Bitcoin drops the price the altcoins will bleed, you need to see diversification as another option apart from the crypto world.