Since OP is a junior, it’s not too late to watch the local paper for this year’s awards. That’s what I did in 2018 for DD’19- I made a list and made sure the following year that she applied for as many as she qualified for. I almost paid the $50 to join Farm Bureau so she could qualify for that one but didn’t- and they ended up having no applicants 
I also googled scholarships for our state, her major, our religious denomination. She also applied for the endowed scholarships at her college and auditioned for a theatre scholarship there. After all the hustle, she ended up with $7200 which for sure helped with freshman year. All local/state/her college.
DD’17 did get a national scholarship we found on Sallie Mae, but it was for her major and they offer a couple hundred of them a year, not just one so her chances were much greater than most of what you find on the big scholarship sites.
Once you’re at a college, apply for their endowed/department/continuing student scholarships if they have them. A lot of students don’t bother filling out even though it may be one app for hundreds of scholarships.