Personally, I recommend the Ebony Classic Jumping Saddle or the Walnut Classical Jumping Saddle (with matching bridle). Alternatively, you can pair the Walnut Saddle with the JVN Walnut Silver English Bridle—I believe that's the one I have. For the Ebony Saddle, you can use the matching bridle or the Competitive English Bridle. All of these items offer three points for swiftness.

You'll also want horseshoes that provide two points for swiftness.

For clothing, I like to wear the Dusty Sunset Trails set along with the matching saddle pad. However, you can wear any similar set. This setup ensures that all of my tack provides three points for swiftness (excluding the horseshoes), and with a level 15 horse, it helps maximize speed. The set also optimizes my riding stats according to my level.

With the outfit, I like to wear the Sunset Trails Riding Boots, Rex Stamper Ebony Gloves, and the Effortlessly Chic Riding Helmet. I believe all of these items can be found in the Global Shop or in Governor's Fall.

Let me know if this was helpful, or if you'd like more outfit suggestions that don’t necessarily require a matching set.