Nothing that compares to nostr:nprofile1qqswacu3amp428kj8wtpqf77yd2upukcn2ft4aycmxm5scmh359e0ssppemhxue69uhkummn9ekx7mp0qyg8wumn8ghj7mn0wd68ytnddakj7qg4waehxw309aex2mrp0yhxgctdw4eju6t09uvt9vcv.

You have Nsec.App, but it is more laggy than #Amber.

Amber is probably the gold standard tbh. nsec is good but can be a bit slow. keychat is doing some really interesting stuff. nostrum was cool but i don't think it's being developed anymore.

Ooooh, someone made a list!

https://spatianostra.com/a-simple-list-of-nostr-signers/

Sometime ago I had forked alby removed all the proprietary login stuff and extracted out their nostr signer for a browser extension.

Its my daily driver, feel free to check it out.

https://addons.mozilla.org/en-US/firefox/addon/signstr-a-nostr-signer/?utm_source=addons.mozilla.org&utm_medium=referral&utm_content=search

Aegis, nowser

Wait for it /cc nostr:npub10000003zmk89narqpczy4ff6rnuht2wu05na7kpnh3mak7z2tqzsv8vwqk

I also made a list recently in this article

https://nostrver.se/blog/very-very-late-after-summer-holidays-update

FROSTR (multisig stack)

Promenade (multisig stack, used by nstart.me)

Amber (Android app)

nsec.app (Web app)

Nostr Remote Signer - shop

https://github.com/kind-0/nsecbunkerd

https://github.com/fiatjaf/nak?tab=readme-ov-file#start-a-bunker-locally nak local bunker

Aegis (iOS app)

Peridot (Desktop app)

Burrow

nostr-gatekeeper

Keycast

Knox

#frostr https://www.frostr.org the mobile signer is still a WIP but they have a browser & desktop based one.

Blockcore is a excellent Signer