The one airline I'd be wary of right now is Allegiant because of that 60 minutes story summarized in this article:
https://www.tampabay.com/live-covera...allegiant-air/
Here's a brief segment from 60 minutes overtime:
I'm not sure i agree with AA being safer considering how bad the morale is over there currently. F9 was having some issues with slowdowns before but I have to say that the flight attendants at f9 seem to in a better mood than than ones ive flown with in the past on legacy airlines.