There's a number of pretty good options for extensions.
If you're in the Alby (nprofile…v60x) ecosystem they have a reliable option in https://chromewebstore.google.com/detail/alby-bitcoin-wallet-for-l/iokeahhehimjnekafflcihljlcjccdbe
Another old school option is fiatjaf (nprofile…3hkk) nos2x https://chromewebstore.google.com/detail/nos2x/kpgefcfmnafjgpblomihpgmejjdanjjp?hl=en-US
And then there's Team Soapbox (nprofile…46a7) Soapbox Signer (which I should have also given a mention in client choice for Ditto.pub) https://chromewebstore.google.com/detail/soapbox-signer/nnodjkgakfpkckcnbacpcjbpmlmbihdd
A lot of apps will also support NIP-46 auth which you can use with mobile signers like nprofile1qqs827g8dkd07zjvlhh60csytujgd3l9mz7x807xk3fewge7rwlukxgpz3mhxue69uhhyetvv9ujuerpd46hxtnfduqs6amnwvaz7tmwdaejumr0dsq3samnwvaz7tmjv4kxz7fwwdhx7un59eek7cmfv9kqv0fm24 (nprofile…fm24) Amber https://github.com/greenart7c3/Amber (which also is great for signing on Android or hardware signers like https://shop.lnbits.com/product/nsec-remote-nostr-signer
