I used Linq for a while. It makes lessons out of whatever “real” content you want in the target language, so you can watch videos, listen to music, read news articles, whatever. The app/site translates words for you as you need them, and keeps track of what you have and haven’t encountered before, so you can find the percentage of new words that works best for you as you look for new articles. I imported a couple of ebooks and read through them, it was pretty good. There’s also a way to pair up with native speakers of your target language who are learning English so you can chat and help each other I think, but I never used it.

It does have the same problem as other things like Duolingo and Memrise where it gamifies it and adds a daily streak, so if you’re not in the mood you have to force yourself to sit down for 10 minutes and do something. I don’t know about other people but personally all that does is ensure I never get enough of a break to get back into the mood, so I do the bare minimum every day and resent it.