Bip39-Standalone. Entropy values should be sourced from a robust source of randomness. This means flipping a fair coin, rolling a good dice, sound measurements etc. Usually do not use phrases from publications, lyrics from songs, your birthday or steet address, keyboard mashing, or something you think that is random, mainly https://thedirectoryblog.com/listings13119678/bip39-word-list-pdf-https-linktr-ee-bip39-bip39-mnemonic-things-to-know-before-you-buy