Bip39. Whilst there are BIP39 wordlists in languages besides English, it is actually strongly not proposed to use non-English words for wallet backups. It would make restoring the wallet difficult or unachievable. What constitutes a "very good wallet" is one which has clear, very easy to obtain documentation on supported https://bookmarkick.com/story18832095/bip39-mnemonic-https-linktr-ee-bip39-bip39-words-fundamentals-explained