I did a little research to find out which conferences will, or likely will, fill their tie-ins. The Pac-12 is the only P5 conference to fill all of its tie-ins. Here's how things currently stand:

ACC: Currently 8 bowl eligible teams, likely to have 9 if Miami beats either VaTech or Pitt. Assuming Miami prefers the Gasparilla Bowl in Tampa over long travel, that leaves the Quick Lane Bowl in Detroit open.

Big 12: Currenty has 4 bowl eligible teams with both OU & WVU likely to get CFP/Sugar/NY6 spots. The B12 will likely have 6 or 7 total teams depending if Baylor can beat TCU this weekend. If TCU can beat Baylor, that would likely leave open both the Cheez-It (Cactus) & Armed Forces bowls.

Big Ten: Currently has 7 bowl eligible teams for 8 tie-ins, but likely to get 3 teams into the CFP/Rose/NY6. Either Indiana or Purdue will also get bowl eligible, so that leaves 5 teams for 7 games. Two of the First Responder (Dallas), Quick Lane (Detroit), or Redbox (Santa Clara) bowls will go unfilled.

SEC: Currently has 9 bowl eligible teams for 10 spots, but will likely get 3 teams into the CFP/Sugar/NY6. And both South Carolina & Tennessee are likely to get bowl eligible. That would leave either the Independence or Birmingham bowl open.

Likely bowls from best to worst case scenario would be:

1-Cheez-It vs P12 (if Baylor doesn't get bowl eligible)
2-Redbox vs P12 (if the B1G decides to send Indiana/Purdue to a more regional location)
3-Armed Forces vs AAC (Most Likely result IMO)
4-Independence vs ACC
5-First Responder vs CUSA
6-Birmingham vs AAC
7-Quick Lane vs MAC