Bip39 tool github https://list.ly/abregeouoh Even though it takes advantage of BIP32 system you could however import BIP39 seeds into Electrum wallet. Also besides BIp32 There exists BIP44 Variation which some wallet use for the generation of seeds. BitBox02 - A successor on the BitBox series, this components wallet supports BIP39 https://meshbookmarks.com/story20861855/bip39-generator-offline-how-bip39-wallet-can-save-you-time-stress-and-money-https-x-com-tundra838554