Bip39 standalone https://www.storeboard.com/blogs/ai-for-small-business/browsing-the-globe-of-bitcoin-addresses-the-value-of-bip39/6240727 Although it uses BIP32 process you are able to nevertheless import BIP39 seeds into Electrum wallet. Also aside from BIp32 There's BIP44 Variation which some wallet use to the technology of seeds. BIP39 solves this through the use of human-readable... https://bookmarkilo.com/story20475031/bip39-to-slip39-5-tips-about-bip39-standard-you-can-use-today-https-t-me-bip39-chat