You can do circle training with following exercises: burpees, squats, jumping lunges, plank, push ups, mountain climbers. Do each exercise 10-12x, and repeate ciricle for 2 more times 🙂
Looks up apps made by Zen Labs or Leap Fitness, they have a bunch of good little workouts that can be done at home with no equipment, programs to follow, etc.
I personally like going for a walk around my neighborhood. It forces me out of the house and in fresh air, and also gets my heart rate up. If you like, when you get home, you can continue to work out by doing crunches and sit ups and push ups, etc. just remember the importance of stretching when you do any sort of strength training!