This condition has so many variables that there is no "best way" that will work for all. A photo would help, but an in person consult is best.
If size increase is part of the goal, implants will usually be part of the fix. The other issues include malposition of the breast fold. large areola, lateral displacement of the breasts, tightness of the lower poles of the breasts, and these all would be addressed in individualized ways, and involve a customized breast lift, often with release of tight breast tissues.
When you ready for an in person consultation, RealSelf has listings of surgeons in your area. You should consider cross referencing the listings from the The American Society of Plastic Surgeons (plasticsurgery dot org). A listing in the ASPS website assures you that your surgeon is not only board certified, but also is a member in good standing of the major plastic surgery organization in the U. S.
Thank you for your question, best wishes.