I have tried countless sites but have yet to actually get a scholarship for any of them.
Try your department, any organizations connected to your major (engineering, theater, government), or the area/state where your college is located. My daughter who was in engineering found a few in her area and from her department.
At this point, you would have to research at your current school. Free money is hard to come by.
One daughter was offered a TA position. You might want to ask if something similar is available. However, to be a TA as an undergraduate student you need to be a very strong student.