Why won’t my AirPods connect to my iPhone?

Hi, first of all do a hard reset on your phone. If that doesnt work follow these steps and reset your airpods:

With the lid open, press and hold the setup button on the back of the case for about 15 seconds, until you see the status light flashing amber. When you reset your AirPods, the settings for your AirPods also reset. You can change your settings again

if nothing works, sign out of icloud and sign back in. Last option, do a factory reset and set up your phone as a new phone and not from a backup.

Hope this will help