A sky guide, a pair of binoculars or telescope, and a general curiosity about the nighttime sky are the most essential resources for getting into amateur astronomy. There are many sky guides as phone applications (some are free), there are websites for determining weather conditions for observations like https://www.cleardarksky.com/csk/, and binoculars/telescopes are sold in many places. Using a red light is also useful for preserving your night vision while observing. This is because red is the longest wavelength of visible light and carries the least amount of energy, making it easier for your eyes to maintain their dark adaptation. For a good program to explore the nighttime sky, I would recommend the free software Stellarium - https://stellarium.org/.