You won't find it here, because this site is dedicated to real astrology, not the Sun Sign fluff that is meant for entertainment purposes only. Knowing your Sun Sign or the Sun Sign of someone you're interested in doesn't tell you much at all, other than vague generalities that fit one in twelve people.
Occasionally, those who write Sun Sign columns hit the nail on the head, but that only indicates that there's something there, something beyond the consensus reality that bears exploring. To find out more, one needs to look at the entire horoscope, which is a map of where the planets were when an individual was born.
This map includes the Sun, but also the Moon, the Rising sign, the love planets Venus and Mars, and a number of other planets, asteroids, and sensitive points. Each planet is located in a sign, a house, and in aspect to other planets in the chart. Knowing how to interpret these placements means learning the language of astrology, and there are now many good books to take you on this fascinating journey.