There is a not a big choice of trustable hardware wallets. You've probably already realised that from the replies - most of them included the same companies. Trustable digital wallets usually give their suggestions on the hardware wallets to hold your keys offline. Ledger Nanon S or Trezor are my choices, i prefer a wallet with a screen - it gives extra security features.

Also, there are plenty of reviews in this forum and also internet, based on which you can make your own choice.