Many colleges have special recruiting events for students bringing a diverse viewpoint to college. Often first generation students are included under that umbrella. Here is a list I made a few years ago. You can dig through it to see who considers first gen for these programs. If by chance a link doesn’t work, you can figure out which college it is and contact them for more information. Applications will open for these starting from August.
Harvey Mudd http://newwww.hmc.edu/admission/fast/fall-fast-program-seniors/
http://admission.scrippscollege.edu/discoverscripps
http://www.middlebury.edu/admissions/visit/programs
http://www.wesleyan.edu/admission/visiting_campus/transportation_assistance.html
http://www.grinnell.edu/admission/visit/gdpp
http://www.whitman.edu/admission/visit/visit-scholarship-program
http://www.bates.edu/admission/prologue/
http://new.oberlin.edu/arts-and-sciences/admissions/mvp/apply.dot
http://www.conncoll.edu/admission/visiting-campus/explore-weekend/
https://college.lclark.edu/offices/admissions/multicultural_recruitment/lead/
http://admissions.tufts.edu/voices
http://admission.enrollment.cmu.edu/pages/celebration-of-diversity-weekend
http://www.wellesley.edu/admission/falltravelgrant
http://www.bates.edu/admission/prologue/
http://www.kenyon.edu/x1697.xml
https://williams-uga.edu.185r.net/survey/?id=104
https://www.amherst.edu/admission/diversity/divoh
http://www.oxy.edu/admission-aid/connect-us/guidance-college-counselors/fall-mvp
http://apps.carleton.edu/admissions/visit/TOC/
http://www.brandeis.edu/admissions/seed/
http://admission.enrollment.cmu.edu/pages/celebration-of-diversity-weekend
http://www.kzoo.edu/admission/visiting/multicultural-program/
http://simpson.edu/admissions/visit-simpson/fly-in-program/ $150 towards airfare
http://www.uiowa.edu/admissions/email-landing-pages/mvd/email.html free bus from Chicago
http://enrollment.rochester.edu/admissions/mvp/ Univ of Rochester
http://www.uvm.edu/admissions/undergraduate/visiting/?Page=discover.html U ofVermont
http://denison.edu/campus/admissions/schedule-a-campus-visit/air-denison-recommendations up to $500
http://www.lawrence.edu/admissions/visit bus from St Paul and Bloomington MN and IL
http://www.pomona.edu/admissions/diversity/msap-fall-weekend.aspx
http://www.trincoll.edu/StudentLife/Diversity/Preview/Pages/default.aspx
http://www.union.edu/admissions/_prv/getting-to-know-u/
http://www.brown.edu/admission/undergraduate/student-color-open-house few details
Now the elephant in the room is finances. Have a frank talk with your folks as to how much the budget will be. For every college you are interested in, you and your parents then need to run the Net Price Calculator to see if the budget is possible or if you need to pursue merit scholarships. Each college has different priorities and methods of assessing this. The crowd that hangs out in the financial aid subforum can guide you through that.