Well, there are quite a few essential oils that have a Christmas tree-like scent. Some of the most popular ones include: fir needle oil, which has a fresh and uplifting aroma; pine oil, which is woody and earthy; spruce oil, which has a fresh and woodsy scent; cedarwood oil, which is deep and warm; and frankincense oil, which is spicy and aromatic. Each of these oils has its own unique qualities that can bring the essence of a Christmas tree into your home.