OneDrive is cheapest 1TB cloud storage I can get. I don't care about realtime colaboration, ony sharing files here and there, but having them encrypted on cloud.
B2 1TB/storage/month ~ $5 250GiB/traffic/month ~$2,5
On OneDrive 1TB/storage/month ~ $7 (home user, there's cheaper enterprise plans) 250GiB/traffic/month $0