Bip39 balance checker https://edgargvkh682.theburnward.com/a-novice-s-overview-to-getting-a-bip39-mnemonic-expression Although it works by using BIP32 system you could nevertheless import BIP39 seeds into Electrum wallet. Also besides BIp32 There's BIP44 Model which some wallet use to the era of seeds. This will work mainly because BIP39 is supported by a great number of wallet compan... https://orangebookmarks.com/story20286566/bip39-spec-5-essential-elements-for-bip39-word-list-pdf-https-www-youtube-com-channel-ucupxfytj0fb78sq55hu6ocw