Let me make this clear for you that no created coin that exists that is better than bitcoin. If you want privacy, you can go for monero. But you should know that there are other ways that you can go for like using coinjoin, mixers and swapping
BTC is indeed the top priority when it comes to crypto investment.
Alts have been created, abandoned and forgotten but btc still remains to be on top position.
As proven by more than a decade of existence in the market.