What’s the best fitness youtuber for effective workouts?

I’ve gained a little weight in the past few months and i want to start working out, mainly with the goal of a smaller waist and bigger ass lmao. I’ve followed workouts from creators like chloe ting and daisy keech before, but i’ve heard about them not being as effective as they claim to be. Does anyone have recommendations for creators similar to them that will actually give me results?