Choosing the right external vibrator can be a personal and subjective decision, but here are some general factors to consider when making a selection:

1. Type of Vibrator: There are several types of external vibrators, including bullet vibes, wand massagers, rabbit vibes, and finger vibes, among others. Consider which type of vibrator you are most interested in trying based on the sensations you are looking for.
2. Power and Intensity: External vibrators come with varying levels of power and intensity, which can affect the strength of the vibrations and the overall sensation. If you are new to using vibrators, you may want to start with a lower intensity model and work your way up as you become more comfortable with the sensations.
3. Size and Shape: The size and shape of the vibrator can impact how it feels when used. Consider the size and shape of the vibrator, including the length and girth of the device, as well as the shape of the head or tip.
4. Material: External vibrators can be made from a variety of materials, including silicone, plastic, and metal. Consider which material is most comfortable for you, as well as any potential allergies or sensitivities you may have.
5. Features and Extras: Some vibrators come with additional features, such as multiple speeds, pulsation patterns, or waterproof designs. Consider which features are important to you and your desired use of the vibrator.
6. Budget: External vibrators can range in price from under $20 to several hundred dollars. Consider how much you are willing to spend on a vibrator, and which models fit within your budget.

Remember, choosing a vibrator is a personal decision and what works for one person may not work for another. Take your time to research and explore your options to find the external vibrator that best fits your preferences and needs.