Bip39 One. Regardless that it makes use of BIP32 process you could continue to import BIP39 seeds into Electrum wallet. Also besides BIp32 There is certainly BIP44 version which some wallet use to the era of seeds. While in the movie beneath you may check out the seed stamping method https://wiishlist.com/story19199008/bip39-github-the-basic-principles-of-bip39-recovery-phrase