Other than Com ME/SE Ins, are there any other licenses/ratings that would allow me to stand out from other applicants at a regional airline?
The regionals aren’t competitive, but these are all good ratings to have: CFI, CFII, AGI and IGI.
The Regionals most want licensed trained pilots with the required time and a record without checkride busts and no criminal background. If you can say that then you’re golden.
Is high performance required for most Regionals, or will they help us get that?
High performance rating isn’t required for 121 flying - just the type rating and ATP. Case in point, I’m fly 737s for Southwest and still don’t have a high performance rating. Or high altitude…