I'll tell you that you don't need a list because a much larger majority of universities accept mixed scores than those which do not. A list of colleges that don't accept mixed scores would be more useful...
But take it on a case by case basis, with the basic assumption that, indeed, the university will accept mixed scores. Once you've narrowed down the colleges you'll apply to (whereupon you make this decision initially without focusing on this issue of mixed and non-mixed scores), simply check their university website. They always make their requirements perfectly clear.
And when you actually do apply to a college, you'll be asked for all the sub-scores of all your SATs. Don't take this the wrong way though, they still take the time to recognize each of the highest sub-scores, and thus they could care less if you got a 300 on writing and critical reading. All they care about is that 800 you got in math! They have better things to scrutinize than your SAT sub-scores that don't count.
Good luck!!
