Chances of admission to top 50 university with excellent grades but few extracurriculars [WI resident, 4.0 GPA, 1520 SAT, 34 ACT, <$40k; social sciences]

[MYOS1634]

Seconding all Canadian universities.

Look into Sciences Po Reims or Le Havre (respectively, Transatlantic relations focus, Asian focus). Topnotch, taught in English, environment in French, $16,000 tuition.
There’s also a Sciences po Columbia program (though you’d need to look at the FA situation from Columbia).

University College Dublin and Trinity Dublin both look at grades/scores only, are excellent for your chosen subjects, and cost about $25,000 for tuition. Living expenses are quite high, especially housing.