Bip39 passphrase empty for none ) https://josueaqpi312.huicopper.com/leading-5-online-bip39-generators-for-easy-copyright-security Although it makes use of BIP32 approach it is possible to nonetheless import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 version which some wallet use to the generation of seeds. Want to check which wallets assistance the BIP39 https://www.demilked.com/author/gobnettlmz/