Bip39 Seed. The passphrase will not be selected with the predefined list of 2048 words – it can be any word or phrase you choose. What constitutes a "good wallet" is one which has distinct, very easy to access documentation on supported BIP criteria, derivation paths, and recovery procedures. This https://socialimarketing.com/story4378237/bip39-passphrase-https-linktr-ee-bip39-bip39-generator-an-overview