I think the cheapest LACs (the ones that give the most aid) are some of the most selective. Also, not that many LACs give merit aid, it’s almost only need-based aid.
However, you might consider Grinnell and Davidson as reaches, as they have some of the most generous merit aid in LACs.
Some LACs have reduced tuition for in-state applicants, so look around and visit some places near you.
You should also check the strength of the colleges you apply to in your intended majors.