As everyone knows we have 33 crore gods and which god should i worship ? I mean we cannot worship all 33 crore gods, so i would need to know name of one god which should delicately worship.
Your question is like, "There are so many Government offices, which office should I visit ?" And my answer is simple, "Visit the office that suits your requirement." Similarly, worship the God, that will fulfill your desire. But if you want peace and Moksha if is your aim, dont worship, try to know self. Do meditation, feel the inner energy."
According to Hinduism there is only one supreme god Adishakti (the energy) and all other are one or more different forms of adishakti. So there is no need to worship all the gods differently as they are all same just different forms. You can worship the one ;you have inner faith and belief. If yor inner voice says you should pray krishna, than you just worship krishna with your full faith
You should worship the ones which fits your karma the best in order to attain liberation from this cycle of birth.