Bip39 or slip39 https://pastelink.net/caobqzis While it utilizes BIP32 process you could still import BIP39 seeds into Electrum wallet. Also besides BIp32 There's BIP44 Model which some wallet use with the era of seeds. The BIP39 word list can be a set of 2,048 diligently chosen words used to deliver mnemonic https://pr7bookmark.com/story20852497/bip39-key-the-single-best-strategy-to-use-for-bip39-word-list-txt-https-cutt-ly-uryc5rw7