Rather than storing entropy, shop the mnemonic created with the entropy. Steganography could be helpful when storing the mnemonic. The random mnemonic generator on this web page uses a cryptographically protected random variety generator. The inbuilt random generator can normally be trustworthy much more than your individual intuition about randomness. https://socialwoot.com/story20434465/how-much-you-need-to-expect-you-ll-pay-for-a-good-valid-bip39-seed-phrase