What specifically are you looking for in a department, OP? Do you want a variety of course offerings, a solid cadre of upper-level courses in a major, solid opportunities to do research…what? I’m willing to bet that with a few exceptions*, you can get a great science education at most of the top liberal arts colleges.
*Excluding Harvey Mudd - which is probably one of the best places, if not the best, given its science orientation - and excluding the difference between LACs that offer engineering vs. those that do not.