If you don't know what market is, you can do one of three things:
1. Check out levels.fyi (overindexed on FAANG; not reliable),
2. Ask for a number that "sounds" high to you, and let the recruiter negotiate down (risky; recruiters might laugh you out the room if you go too high), or
3. Ask a recruiter, and then add a premium on top of whatever they tell you!
Recruiters will be an excellent source of what a realistic market is for your skills in your area. However, as this article articulates, many people don't negotiate, so it's fair to assume that the market rate they give you is low.