What are the best ways to tone up my abs/core?

ButterflyXkisses
My stomach is not up to my standards and I'd really like to tone it up into the tummy of my dreams. What are the best exercises and methods I could do tone up? I'm not looking for my abs to start showing, but I'd like to lose the excess fat and firm up a bit.
What are the best ways to tone up my abs/core?
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