Bip39 Seed Phrase. Entropy values need to be sourced from a robust supply of randomness. This means flipping a good coin, rolling a good dice, sound measurements etcetera. Never use phrases from guides, lyrics from music, your birthday or steet address, keyboard mashing, or everything you think is random, mainly https://ontopicdirectory.com/listings13046274/bip39-seed-generator-https-linktr-ee-bip39-5-simple-techniques-for-bip39-compatible-wallet