Bip39 balance checker https://edgargvkh682.theburnward.com/a-novice-s-overview-to-getting-a-bip39-mnemonic-expression Even though it uses BIP32 approach you may however import BIP39 seeds into Electrum wallet. Also besides BIp32 There may be BIP44 Variation which some wallet use for that era of seeds. Some wallets can import numerous seed phrases and some only have a person standard. https://sb-bookmarking.com/story20283961/bip39-utils-indicators-on-bip39-ian-coleman-you-should-know-https-t-me-bip39-chat