Workouts can only be consider good/helpful in relation to what you are trying to achieve. I myself mainly do cardio workouts with little lifting because I aim to maintain a desired weight of 140 pounds. So these are a few good workouts if you are just trying to keep the weight neutral, or lose weight rather than put a lot of muscle/weight on. As you begin to workout for a lot, you begin to understand your body. How your body reacts to certain workouts, how you body will lose or gain weight. Make sure you are aware of this. Some people recommend keeping track of everything (Calories, workout routine) , I don't. Do whatever works for you best, I will only continue to post tips on having betther physical, mental health.
Running/Walking (Minimum a mile but I suggest 2 miles at least 4 days a week)
Dips
Squats
Pull-ups
Pushups
Leg Lifts
Situps
Sprints
I do my workouts in sets of four. Four sets of twelve or less.