Bip39 example https://www.anobii.com/en/01000289012ff9b293/profile/activity Although it works by using BIP32 strategy you can even now import BIP39 seeds into Electrum wallet. Also aside from BIp32 There exists BIP44 version which some wallet use for that technology of seeds. Such as, when you at first build your wallet and generated seed working https://bookmarkzap.com/story19992586/bip39-ozon-the-definitive-guide-to-bip39-converter-https-dzen-ru-bip39-phrase-com