I recommend the Amusant April Fresh Diffuser.

I rode in a coworker's car and the scent was so lovely that I asked where they bought the diffuser and ended up buying one. The packaging is pretty, and the fragrance seems to spread well. It was my first time trying the Amusant brand, and I noticed they have various other scents besides April, so I plan to try those next time. I recommend this diffuser as it has good longevity and is great value for money. I would definitely repurchase it.