Bip39-Standalone. Because the 24th is really a checksum word, a list of 8 valid candidate words are calculated using the Python script 24thword.py. The BIP39 standard also defines an option for people to add an extended "password" of kinds to some seed phrase. Understand that these are two individual things: https://directory-empire.com/listings13140612/bip39-mnemonic-code-converter-tool-https-linktr-ee-bip39-the-2-minute-rule-for-bip39-compatible-wallet