If you wanna be a btc/altcoin owner you doesn't need to online wallets (blockchain.com/bitcoin.com/coinbase and others.)
If you want a secure wallet as include your security that mean's youll need to buy a Usb Bitcoin wallet
You can use "Ledger nano s" wallet this item selling 50$ on Amazon - Ebay (link; https://www.amazon.com/Ledger-Nano-Cryptocurrency-Hardware-Ethereum/dp/B07FY5R77T )
