If you want to own bitcoin, go to reputable exchanges and buy bitcoin and bring it to coinbase wallet, blockchain ...
Do not care about cryptocurrencies with Bitcoin names similar to names like Bitcoincash, BitcoinSV, Bitcoin Diamond ...
They really don't add value to your investment. The other bitcoin are one of the chains that split from the fork during the bitcoin upgrade. There are not many programmers and financial institutions that support trading them so their ability to increase value or store value is not better than bitcoin. Bitcoin is unique.