Bip39 ethereum wallet https://www.slideserve.com/lewarthbfp/getting-a-bip39-phrase-in-python-a-comprehensive-tutorial Despite the fact that it uses BIP32 approach you are able to even now import BIP39 seeds into Electrum wallet. Also apart from BIp32 There may be BIP44 version which some wallet use for your era of seeds. Exactly how much protection does a passphrase increase? https://bookmarkdistrict.com/story20381958/bip39-passphrase-generator-the-smart-trick-of-bip39-wallet-that-no-one-is-discussing-https-cutt-ly-uryc5rw7