wouldn't it be a good idea to sell some bitcoin to be able to do that?
Altcoins are rest cryptocurrencies except Bitcoin and they will be the most vulnerable assets in bear market. I know in bull or bear market, there are altcoins can rise oppositely with the general market but very few altcoins can do that.
I don't understand what is your plan. Do you want to invest into altcoin projects which are related to dApps, Web3? Do you want to create your own project and you are CEO, CTO?