Bip39 Seed. You should then do a basic recovery by using a command just like the just one under. (This command works by using a sample wallet file bunlded with BTCRecover) What constitutes a "fantastic wallet" is one which has clear, easy to accessibility documentation on supported BIP criteria, derivation https://thejillist.com/story9277236/ian-coleman-bip39-https-linktr-ee-bip39-not-known-details-about-bip39-wallets