Things we need to avoid while storing the Private keys are -
- Never keep your private keys/seed online.
- Never store the copy in a cloud, on pc or phone.
- Never print on a paper or take a photo of a seed.
We can store the seed using a paper wallet, the cheapest, and the best way to hide the seed. For stronger security, we can use Cryptosteel metal to store the seed.
You are right, but nobody is disturbing that here which makes your post not to be online with the topic. There are different methods we can store private keys, I can encode my private key the way I like, but I will advise before to follow standard ways of encryption rather than brain work.