Bip39 seed phrase generator https://www.hometalk.com/member/176312665/elva1377050 Despite the fact that it takes advantage of BIP32 system you may continue to import BIP39 seeds into Electrum wallet. Also other than BIp32 There may be BIP44 Variation which some wallet use for the generation of seeds. This functions since BIP39 is supported by https://socialbuzzfeed.com/story5918864/bip39-condensed-pdf-not-known-details-about-bip39-word-list-txt-https-dzen-ru-bip39-phrase-com