Ledger Flex

just use a Pixel with GrapheneOS installed

Paper wallets if they count.

I just use a metal seed plate, but the newer Trezor models work (...Keystone, Passport Prime, and XMRSigner soon™)

You could also use an old offline device with Sidekick(Monerujo) or Cupcake(Cake wallet)

I'm using Cypherock hardware wallet.