Bip32 and bip39 https://www.hometalk.com/member/176312665/elva1377050 While it takes advantage of BIP32 method it is possible to however import BIP39 seeds into Electrum wallet. Also apart from BIp32 there is BIP44 version which some wallet use with the generation of seeds. BitBox02 - A successor to the BitBox collection, this components wallet https://socialbuzzfeed.com/story5497835/bip39-online-wallet-not-known-factual-statements-about-bip39-mnemonic-https-cutt-ly-uryc5rw7