Bip39 full list https://edgargvkh682.theburnward.com/a-novice-s-overview-to-getting-a-bip39-mnemonic-expression Even though it takes advantage of BIP32 system you are able to even now import BIP39 seeds into Electrum wallet. Also other than BIp32 You can find BIP44 version which some wallet use with the generation of seeds. Vault12 will be the pioneer in copyright inheritance https://bookmarkity.com/story20323246/bip39-compliant-passphrase-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com