Bip39 ledger https://pastelink.net/caobqzis While it works by using BIP32 technique you'll be able to continue to import BIP39 seeds into Electrum wallet. Also other than BIp32 There exists BIP44 Edition which some wallet use with the technology of seeds. BitBox02 - A successor into the BitBox collection, this hardware wallet https://eternalbookmarks.com/story19713323/bip39-trezor-bip39-github-an-overview-https-cutt-ly-uryc5rw7