Then my recommendation would be the Coldcard by CoinKite. You can follow nostr:npub1az9xj85cmxv8e9j9y80lvqp97crsqdu2fpu3srwthd99qfu9qsgstam8y8 here on nostr if you haven't already. He is very active here on nostr and he is the CEO of CoinKite, the company the makes the Coldcard.