What are some good boxing workouts to do in the weight room?
sorry, i’m not going to do all the work for you, seeing you want boxing tips for fat boxers in another thread :
hit google, i’m here to offer advice on training routines you have made yourself or tips on training but not to sit here and make a routine for you… people pay money for that kinda service 
everything helps, 3 sets 15-24 reps. But yea dog, you need to hit up google or something. Getcho ass into a gym bra 
id say in the 16 rep range of each exersize
But probably just the core exersizes
ie
Squats
Bench Press
Deadlift (?) not sure on that one
Then bicep curls probably useful too
lower back excercises never hurt…