For my understanding, bitcoin has no substitute but everyone wants to know more about whether there is an altcoin that can beat bitcoin. Altcoin remains the subordinate and bitcoin is still the first, yesterday there was even an altcoin whose price reached the highest price of bitcoin, namely YFII but it won't last a long time except the highest bitcoin which remains permanent above all altcoins
If there is an altcoin that can compete with bitcoin prices I think it's only temporary hype. including YFI. The effect of DeFI has made YFI's price increase quite fantastically. but also the decline that occurred was quite fast. Regarding Op who asked about bitcoin as the next gold. I think this is not quite right. because now so many people misunderstand bitcoin. between gold and bitcoin is different. and will not be able to replace the two