A good number of Midwestern LACs give out merit money like Depauw and Beloit (as well as Denison already mentioned).
Another possibility, if he gets enough AP credits (so high scores on AP tests) is paying for 3 years of schooling (still could be spread out over 4 years). He’d have to know what major and have little room to explore, however, and many on here are proponents of 4 years of college, but say that 3 years at NU end up costing the same as 4 years at Case/Davidson/Beloit.
Would you really take NU as an option off the table?