1. seedsigner (https://seedsigner.com/)
2. foundation (https://foundation.xyz/)
3. keystone (https://keyst.one/btc-only)
4. Coldcard (https://coldcard.com)
nostr:nprofile1qqsrtuazdng7waddzmdd3nyw36w5sfvler95vgcte9nreqf8jtwlyvgpz4mhxue69uhhyetvv9ujuerpd46hxtnfduhsz9mhwden5te0wfjkccte9ec8y6tdv9kzumn9wshsz9rhwvaz7te3xgmjuvpwxqhrzw358qmrjtcgkjwdq wrote a decent guide on choosing the right seed signer (aka Hardware Wallet)