Chance threads involve parents, alumni and students making only partially educated guesses, not knowing the rest of your application or those of other appllicants and how the admissions office will view both. You know your stats are nicely competitive for all your schools, just from the common data sets, etc.
Congrats on your great achievements in high school!
You might add another true safety besides your state flagship. Think 50% or higher admissions rate and your stats way up in top 25%. Maybe Clark? Or Wheaton (MA) or Muhlenberg?
Best tip for a slight advantage: if the net price calculator shows you can afford to attend, pick one of your top choices and apply early decision. Good luck!
You have done well for yourself in high school. Congratulations on doing high school academics, testing and ECs well enough to apply to those schools you have selected. The thing that can set you apart from those with similar strengths will be your essays and letters of rec. What relationships with adults have you built in that time? Those are the people that need to be writing your letters of rec. What makes you YOU? That needs to come across in your essays. Why are you the right fit for the one school you are applying to each time you fill out the application? What is it about that school that draws you like no other? And yes, applying ED as @TheGreyKing says can be an advantage, but only if you can afford to. IMHO i t would be terrible to get accepted and not be able to pull of the finances.
The schools you are applying to have only a select number to offer admission to. It’s an accomplishment to have what it takes to be the kind of kid that has the numbers they are looking for, yet as one of the websites of the schools to which you are applying will tell you-they deny 9 out of 10 valedictorians.
Hey, but you have made it this far and as a runner you know that when you are this close to the finish line, this is where the difference between first and last happens. Some may cruise in and others will find something inside of themselves to draw on that nobody else had in the tank. Godspeed to you.
For an analysis of faculty publishing in economics at liberal arts colleges, you can read through this analysis: https://ideas.repec.org/top/top.uslacecon.html. The top ~20 schools – a group that coincides nicely with your current choices – would be excellent for an economics student.
For economics or math, or particularly both in combination, you should definitely consider Hamilton, which (along with Bowdoin from your list) appears in a Princeton Review sampling, “Great Schools for Mathematics Majors.”