Bip39-Standalone. First of all it is best to store it SEPARATELY out of your seed. Getting your seed along with your passphrase in the identical place defeats the objective of aquiring a passphrase to begin with. This is effective due to the fact BIP39 is supported by a lot of https://agency-social.com/story4194322/bip39-word-list-https-linktr-ee-bip39-5-simple-statements-about-bip39-mnemonic-explained