I did briefly look at the Passport wallets. My one big criteria is that it must be supported by Nunchuk Wallet, as that's the wallet I love and am committed to. I've been looking for a list of all hardware that supports Nunchuk, but haven't really found anything definitive. I may end up reaching out to Nunchuk support for better understanding of which hardware wallets they support. They've got an active nostr presence, and are pretty responsive, so that may be the way I go for determining which wallets/signers can be used with their wallet.