Thanks Michael for your answer that will Help me
Don't settle on 1 or 2 brands/models before you even have had a chance to review spas in person.
A list of brands that have good reputations would include: Arctic, Artesian, Bullfrog, Caldera, D1, Hot Spring, Jacuzzi, Marquis and Sundance (an maybe others). You may have a couple of those or all of them depending on your area. Use the dealer locators on the manufacturer websites to see who is in your immediate vicinity (maybe within 50 miles).
After seeing who is in your area, visit those locations and wet test your top 3 or so based on what looks good, seems like a good deal (what is included in the deal), seems like its from a dealer you trust... that wet test will go a long way toward making an informed decision.