Bip39 passphrase generator http://www.mediafire.com/file/uilrjfajg2ami24/pdf-14673-57158.pdf While it works by using BIP32 approach it is possible to still import BIP39 seeds into Electrum wallet. Also besides BIp32 There is certainly BIP44 Model which some wallet use for the era of seeds. BIP39 improves wallet safety by building backups reputable, quick, and resistant https://advicebookmarks.com/story27838192/bip39-light-detailed-notes-on-bip39-wallet-https-t-me-bip39-chat