Op is applying to English at UMD so their SAT Math score will be seen are largely irrelevant even if it’s 600 (and it’s likely higher than that) - the submitted score average skews high due to Engineering and CS applicants who submit 750+ math scores.
OP is definitely in at UMD and after RD deadlines should focus on the Honors program they’d like to apply to if invited to the Honors College (they may also be invited to a Scholars program). It’s definitely the one to beat if they get into Honors/Scholars.
SUNY Binghamton will appreciate the rigor and grades; it’s currently trying to expand its OOS outreach and has 2 relevant special programs
A college that’s got fewer students than you’d wish but is rather large (it doesn’t feel like a HS at all) is Denison. The Lugar program is excellent for political science&policy and it used to have a specific professional writing program with a particular area of strength in long form non fiction narratives, but now it’s split into Creative Writing within the English dept with many literature courses and the Journalism major with a closer focus to what you’d want. They’re very good with professional placement.
Run the NPC: they do have merit aid but not sure it’ll be within budget.
Check with your parents whether the 30k budget is fixed or could be flexible.