Bip39 Mnemonic. You'd then do a basic Restoration by using a command such as the one underneath. (This command works by using a sample wallet file bunlded with BTCRecover) What constitutes a "fantastic wallet" is one that has very clear, straightforward to accessibility documentation on supported BIP requirements, derivation paths, https://mediajx.com/story21227887/bip39-wallets-https-linktr-ee-bip39-a-review-of-bip39-word-list-pdf