Official bip39 list https://andersonsaeu988.iamarrows.com/bip39-generator-online-the-best-devices-for-secure-wallet-creation Though it employs BIP32 technique you could however import BIP39 seeds into Electrum wallet. Also apart from BIp32 You can find BIP44 Model which some wallet use with the generation of seeds. Exactly how much stability does a passphrase include? A BIP39 passphra... https://ez-bookmarking.com/story20188171/bip39-vs-electrum-bip39-ian-coleman-for-dummies-https-t-me-bip39-chat