Online backup recs for a teenager?

[rach3975]

We just ordered a first laptop for my oldest son, who's starting high school. I use Crashplan and love it, but I think it's too much backup for him. I'd like to look at some less expensive alternatives, services that are reliable but are $5 or less per month.

Jason saves most of his schoolwork online in a Google drive that he gets through school. (I can't remember if it's technically part of Google classroom or if it's an education variation of Google Drive.) Can online backups back that up? I know a lot about physical drives, but I don't use a virtual drive and am clueless about how they can be backed up. He's also a gamer and will have saved game files to back up. Any recommendations? Thanks!