DL posted some hard numbers and there’s been tiny glimpses of other flight times that guys have had when they got hired. DL was roughly 7500 TT and 4100 PIC. Not 121 PIC but total PIC. I have to think your time is in the ball park. As Rickair said I’d plant myself in front of every airline I’m interested at any job fair/conference. If you don’t you can’t say “I did everything I could.”

When was your last new full training course? More than five years and the computer might be punishing you. Go get new ratings and see if they, as well as face time at job fairs/conferences, moves the needle.
Easiest additional ratings to acquire, one every six months - private glider, private SES, commercial glider, MES.

Any CKA prospects? That’s a big plus.

Good luck.