As discussed already in other topics, this is certainly the best solution, however this is not viable for most of users.

Using a computer solely for that (as a wallet) is more expensive and requires additional work and knowledge than most of people are able to do.

I think ledger/trezor are still the best solutions for most users. Those wallets are easy to use, and as long you are not a completely newbie (such as putting your seed in your google drive or email draft) you are safe. Evil maid attack, or any other of those attacks are realistic almost impossible to happen, and a mistake while using an airgapped computer is much more likely to happen.