Haven't looked into Coldcard but I know Trezor is OG, open source, and audited. I'll look into other options too.
Discussion
why not Ledger?
Not open source and this
https://beincrypto.com/massive-ledger-data-leak-increases-sim-swapping-threat/
The cofounder of Coinkite, which sells the Coldcard, is on nostr #[5]
His website:
For Bitcoin only, Coldcard is arguably the best.