Ellipal Bip39. Though it takes advantage of BIP32 technique it is possible to still import BIP39 seeds into Electrum wallet. Also apart from BIp32 There exists BIP44 Model which some wallet use for that technology of seeds. Inside the online video underneath you'll be able to enjoy the seed stamping https://angelofqalv.scrappingwiki.com/1101956/the_anatomy_of_the_bip39_phrase_entropy_text_and_protection