Whats the bset way to loose stomach fat and get abs?

List all ideas from longest to shortest, from hardest to easiest. And please give estimates of how many, how many times a day, and how long it would take. And I’m not really familiar with the names so if you could, please explain how to perform it.
Uhm, try not to reccomend situps because Ive been doing them for too long and they don’t help.