I agree with J's Alley, the first place to start is to go "window shopping." It's difficult to recommend one particular item because so much about what makes a good toy depends on your preferences.
1. Browse the website and look around for what type of toy appeals to you. Toys range from super realistic to non-descript, modern shapes to toys shaped like other items entirely (think rubber ducky and fake lipstick tube). Some of us love the realistic penis toys and others hate them. There is absolutely something here for everyone.
2. Figure out what your price range is. You can spend $5 or $300 here and everything in between. There are very decent toys in every price range.
3. Look for toys with multiple settings. Keep an eye out for reviews mentioning a wide range among those settings. When you don't know much about your taste in toys, it helps to have a toy with a well defined low, medium and high setting so you can try them all out.
4. Pay attention to descriptions reviewers write about materials and texture. Each type of material has advantages and disadvantages that only you can decide will be good or bad for you, but knowing what to expect when your toy arrives will help make sure you like what you get.
I will disagree with Gunsmoke on one thing: rabbit-style vibrators. Often these toys will vary in how well they fit your anatomy. One toy will work for you, but not the woman standing next to you and the next rabbit will work for her but not you. Don't get me wrong, rabbit vibes that fit your body are AMAZING. But many are really pricey so it pays to figure out what might fit you before you purchase one.
Hope this helps you find a great toy. Toys are a great way to improve your personal sexual experience, but also a wonderful way to regenerate excitement in a couple who has grown apart, so consider including your husband in your search.