If you're drilling English --> target-language sentences with spaced repetition, you might be interested in the free site I made to do just that.^[1] You can find the link in my bio. The source code is also on github.

Sentence practice is really the best way to do things imo. Studying vocabulary in isolation is so limited by comparison. So nice moves there.

^[1]: Actually, my thing does target-language to english drills, not the other way around.