Bip39 online generator https://pastelink.net/caobqzis While it works by using BIP32 system you could still import BIP39 seeds into Electrum wallet. Also other than BIp32 There may be BIP44 Model which some wallet use for that era of seeds. Compared with standard wallets derived entirely from a seed phrase, passphrase-safeguarded wallets https://minibookmarking.com/story20791445/unknown-bip39-wordlist-bip39-converter-an-overview-https-cutt-ly-uryc5rw7