Try the fetch-beast. A fetch is The Familiar Spirit that is the witch, the subconscious soul. Given that this being is apart of you, you're less likely to have poor results that go haywire, as opposed to a non-local spirit (something external of yourself)
The fetch-beast typically is primitive, animalistic, innocent as a child, and based on emotion, instinct, and communicates through feelings and symbolism. By communicating with it, your intuition and understanding of symbolism will increase.
The holy guardian angel is a similar concept found in ceremonial magick, which is much more documented.
That said, if you're still fresh, don't go wading into a fray for power. Power in inherant, and looking for power elsewhere because you are too lazy or want faster results, will inevitably cause you problems. There is always a price from accepting gifts from spirits, especially power.