I'm Diggin' on TalkPal. It has elements of Duolingo that I enjoy, but shorter bursts. Also includes roleplay, much better pronunciation feedback, and grammar feedback and explanations. Also...

...describing pictures, talking with famous historic and literary figures, debate, and lessons up through C2.

In four days my pronunciation went from being in the 80% correct range and into the mid 90s. I can also see my conversation improving a whole lot. There is an option for a grammar explanation after every exchange. A bunch of languages.

I'm still exploring it, so I know there is more. I've already ordered the year plan that comes to between 6 and 7 dollars a month.

I will be letting my Duolingo subscription expire.