I got 1 TB for free with TransIP STACK. They use encryption on their end, I use on mine as well (Cryptomator). Its cross-platform (basically their clients are a fork from OwnCloud/NextCloud), there's a web interface, simple to share with others, and it works on every filesystem AFAIK. No vendor lock-in.

The only thing Dropbox has going for it, is that it was the first one which was both easy and popular when there was demand for it. That's all. Network effect example numero uno.