Ohhhh. $15,000
That does change things.
Some schools, like Rice and the Rice investment - you’d get full tuition (assuming family assets aren’t out of range).
You really need to run the NPCs at many schools and apply to W&L for the Johnson, SMU for the Presidential and others where the NPC show you can go for $15k. Again, the Taco Bell award is awesome but may impact your need. You should ask a few schools how it works.
Reno, if you take less expensive food and housing, can make it there with the $8k Presidential. UNLV has a $10k Presidential and if you earn these, could work.
So $15k but $100k in income will be tight. Schools may say you need to spend more and the most generous are likely not realistic. So check the NPCs at Kenyon and Franklin & Marshall, Denison, Miami, Emory, Lafayette, Franklin & Marshall, Oxy of course as it’s on your list, etc. I gave you a list before of meets needs schools. Just know some are need aware. If they show that you need so much, they may reject you for that reason.
If NPCs show higher than $15k and I suspect many meets need schools will, then you have a conundrum.
As an aside, there are schools - not your type but ones like Alabama and Mississippi State where you’d be $20kish or a tad lower for tuition room and board. At Ole Miss, which has the outstanding Croft Imstitute for International Studies, tuition, room and board are $41,200 OOS (not including books, travel). You’d get if I’m read right $28,440 off so you’d be under $15k all in.
Not your kind of school I know but when you have a tight budget you need to trade off. And it’s strong for International Relations.
Hopefully Occidental or others admit you. But what if they don’t or they want far more than you can afford? That’s where the Nevada schools or an Ole Miss can come into play.
Perhaps high merit plus need schools like Beloit and Kalamazoo can work with you but unless they are need blind and meets need and the NPC shows a $$ amount that works for you, $15k will be tough.
So it’s onerous but it would make sense to look at the NPCs if meets need schools one by one.
Just know, the most generous will be the hardest admits. Hence the need for back ups, even if they’re not the dream.
Good luck.