Bip39 seed phrases https://go.bubbl.us/ebe220/f17a?/Bookmarks While it works by using BIP32 technique it is possible to still import BIP39 seeds into Electrum wallet. Also aside from BIp32 You can find BIP44 version which some wallet use with the generation of seeds. BitBox02 - A successor to the BitBox series, this hardware https://bookmarkoffire.com/story19922644/bip39-seed-to-private-key-bip39-generator-secrets-https-dzen-ru-bip39-phrase-com