Hi Fitness Girl
We started a 'Cardio Series' - check it out for more cardio while we build the library.
For standing abs, a lot of the standing stabilization videos work the core. Anything with balance all comes from activating your ab muscles while standing and isolating the movement from your legs and arms. Also the standing arm workouts are a ton of core!
Try those out while we get more specific standing ab workouts loaded on the platform
And THANK YOU for the awesome suggestions, always :)