Verbena basil is a popular herb that is known for its unique and refreshing flavor. However, it is not always easy to find this herb in local markets or grocery stores. If you are looking for alternatives to verbena basil, then you might try using lemon basil, Thai basil, or holy basil. These herbs also have a citrusy flavor that is similar to verbena basil. Additionally, you may use lemon zest or lemon juice to achieve a similar taste. While these substitutes might not have the exact same flavor as verbena basil, they can still add a delicious and refreshing touch to your culinary creations.