I don't have access to a gym so I mainly do calisthenics. For cardio, I workout on a heavy bag. Buuuuuut bag recently decided to fall apart, so I no longer have access to a bag.

I'm really big into mma, although I've never had any real training, so I'm definitely looking for a workout with that in mind. Something that could benefit me in that area. I'm thinking a circuit would be ideal, I just don't know what would be a good circuit specifically for me. Soooo any suggestions? What do you think would be the best workout to get the results I want?
Any feedback will be greatly appreciated! Thanks for reading!