Below are some general rankings for US and World universities. If you are interested in a specific field it would be wise to search for top universities in that field. Some of these links will allow you to see rankings by subject area such as Art or Engineering so look there as well.
Forbes -Top Universities List -United States
Forbes -Top Universities List- World
Forbes -Articles & Matchmaker Quiz
US News & and World Report -United States
Money's (Time) Best Colleges
Niche Best Colleges
Economist Best Value Best Universities
Kiplinger's Best value Best Colleges
4 International Best Colleges in the World
QS Top Universities World
Times Higher Education World University Rankings
CWUR Center for World University Rankings
Forbes -Top Universities List -United States
Forbes -Top Universities List- World
Forbes -Articles & Matchmaker Quiz
US News & and World Report -United States
Money's (Time) Best Colleges
Niche Best Colleges
Economist Best Value Best Universities
Kiplinger's Best value Best Colleges
4 International Best Colleges in the World
QS Top Universities World
Times Higher Education World University Rankings
CWUR Center for World University Rankings