I follow Caroline Girvan on Youtube. Her channel is great for the Gym.
I typically workout at home, a mixture of cardio and Weights -

Fat is really going to boil down to what you're eating - workouts can obviously help with that and are great for our health, and building muscle will help your "metabolism" in that you will burn more calories throughout the day, but reality is those differences are pretty minimal.
I found that adjusting my diet macros helped me find what food types/combos satiated me the most, which made it a lot easier to stay in my calorie range, and see success when I stick to it. For me, it's higher protein and fats, lower carbs (but not "low" or no carb - definitely no where near keto). That combo seemed to provide the fuel I needed to not sap my energy levels or affect my workouts, and made it a lot easier to generally eat less without feeling like I was starving all the time.
The best workouts are the ones you'll stick with. I have a pretty decent home gym set up, based on what I prefer to do - lots of strength training, combining/adding in mobility and dynamic strength moves, and some cardio on the side. For the most part I dislike most cardio - but I do enjoy hiking and riding my bikes so that's my main focus in that regard, but cardio is an area I could use more of.
My workout plans are generally pretty customized due to my preferences and my sport, not typically what you see put together by most programs out there.