Hi Kelly Grady. After being off with a broken ankle, I'm sure you're anxious to get back to working out! I've never broken my ankle but have had several high ankle sprains. What I recall is that you want to stick with low-impact and no "cutting/twisting" types of motions until you develop strength in your ankle.
I've attached some lower impact exercises that work you hard but don't require jumping/twisting/cutting. If there are any exercises in them that do, just modify to keep your heartrate going while skipping the high impact.
Any core exercises would be great too. I like this one by Sam Skelton: https://grokker.com/fitness/video/abs-anywhere-any-time/574f41a7a84213354962c2a2
You may also consider Ellen Barrett's walking program: https://grokker.com/fitness/cardio/program/walk-strong-low-impact-cardio-with-ellen-barrett/5887e4e30eeec67481fa03fa
Good luck as you get back into it. Remember to take it slow. You don't want a set-back :-)