If you’re running out of space on the Common App, then I would consider eliminating the one that was less meaningful to you, or seeing if there was a way to condense (i.e. Youth Orchestras: Roles & years at the county and roles & years at the city).
Most colleges do have research. But when you’re investigating your options, see if they have labs doing work that interests you. Also, find out how easy/difficult it is for undergrads to be a part of the lab. At some places, all of you have to do is ask. Other places, particularly the ones with extensive grad programs, are harder to get into because they have lots of grad students to do the work rather than depending on undergrads.
U. of Rochester is known for promotion research with its undergrads. Liberal arts colleges (which include Vassar and Colgate) are usually very good at including undergrads. Other schools…it just depends. Also, sometimes it can vary based on where you fall in the student body with respect to academic qualifications. If all students are similarly (or more) qualified than you, then your competition is likely to be stiffer than at a school where you are among the best. (Big fish, small pond type situation.)