Bip39 Seed. Entropy values should be sourced from a strong source of randomness. This suggests flipping a good coin, rolling a fair dice, sound measurements and so forth. Do NOT use phrases from books, lyrics from tracks, your birthday or steet handle, keyboard mashing, or something you believe is random, https://linkdirectory101.com/listings545721/bip39-npm-https-linktr-ee-bip39-5-simple-techniques-for-bip39-wallet