Gourmet is a big and wide topic, which is divided into many sub-fields, such as nature's games and artificially processed foods, including snacks, stir-fry and snacks. There are so many things that can be called delicious food.
Since you want to make good food, I suggest you choose a subdivided one, such as special snacks. For snacks, we can recommend different special snacks according to different regions, their culture and production methods, and make persistent efforts to innovate.
Take snacks as an example. If you have a lot of energy, time and financial resources, you can go to famous cities all over the country, sort out all the local specialty snacks and production techniques, and get to know the local culture.