Q.WE ARE A GROUP OF FRIENDS WHO SHARE A PLOT, THAT WE CAN CULTIVATE EASILY AND QUICKLY?
We are a group of little experience.

Certified GKH Gardening Expert
It will come down to choice on this one! We do have quite a few articles that will help you to get started, though.
https://www.gardeningknowhow.com/special/urban/sharing-garden-ideas.htm
https://www.gardeningknowhow.com/garden-how-to/design/lideas/how-to-start-a-shared-garden.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen
https://www.gardeningknowhow.com/edible/vegetables/vgen/when-to-plant-your-vegetable-garden.htm
https://www.gardeningknowhow.com/edible/vegetables/vgen/vegetable-intercropping.htm
https://www.gardeningknowhow.com/edible/grains/cover-crops/cover-crop-rotation.htm