Bip39 seed phrases https://andersonsaeu988.iamarrows.com/bip39-generator-online-the-best-devices-for-secure-wallet-creation While it makes use of BIP32 approach it is possible to even now import BIP39 seeds into Electrum wallet. Also apart from BIp32 There may be BIP44 Variation which some wallet use for your technology of seeds. Want to examine which wallets assistance the BIP39 mnem... https://andersonehmh757.timeforchangecounselling.com/getting-your-first-bip39-passphrase-idea