It goes without saying, there are so many styles of hearing aids. In reality, the right style for each person depends on their hearing loss. In addition, lifestyle needs such as cosmetic issues or finger dexterity are valid needs.
Your hearing specialist will be an invaluable resource for you in the decision making process. At any rate, choose the styles of hearing aids that suits you. Then, you can talk about the technology options.
In addition, we have an article that will help you find the best hearing aid for you here.