What are my match schools? [$20-30k limit with merit, STEM major from LA, NMF 4.0 GPA]

With divorced parents, you need to check if colleges require both parents’ (and their spouses’) income and assets for financial aid purposes. Some do and some do not. If they do, then you need to put all of their income and assets into college net price calculators. Most of the “prestige private” colleges do, except for Chicago, Vanderbilt (usually), and Princeton (if your custodial parent is remarried).