Bip39 ledger https://blogfreely.net/travenmdoq/create-your-own-distinct-bip39-mnemonic-expression-with-python-scripts Even though it makes use of BIP32 approach you are able to still import BIP39 seeds into Electrum wallet. Also aside from BIp32 there is BIP44 Variation which some wallet use for the era of seeds. bip39-phrase.com is an informational web site dedicated to technologies ... https://thesocialcircles.com/story5563897/bip39-ledger-new-step-by-step-map-for-bip39-word-list-txt-https-t-me-bip39-chat