What is the best way to trigger when a specific label added to an issue?

I want to do something when an issue is marked as a “good first issue”.

Which trigger do you think will do the job?

In Zapier, I have the general event which contains the field event: labeled, but here I don’t know how to get this event.

The “Watch Issues” event contains the whole list of labels for an issue, do I have to use a database just to know if the “good first issue” label was added?