My breasts look like cones instead of being round. How do I fix this affordably?

There are an infinite number of breast shapes and sizes, and many of them are more cone shaped than others.  The technique that is best for you will be determined by the particular shape and size of your breasts as well as your goals.  The best way to determine an appropriate plan is to meet with an experienced Board Certified Plastic Surgeon who can discuss your options and help you achieve what you're looking for.  

Far more important than the technique is the skill and experience of your plastic surgeon. Choose your surgeon rather than the technique and let them explain why one technique may be better than another.  See the below link on some suggestions on finding the most qualified Plastic Surgeon for a BBL Always insist on a board certified plastic surgeon.
#breastaugmentation

It not possible to guide you without  an examination or photos. When I hear cone shaped I think of a constricted breast. This is a breast that is small, tight, pointy with a short distance from the nipple to the fold of the breast.  In a constricted breast the breast is often made more round by placing an implant and releasing the bottom tightness of the breast. Sometimes the skin is tightened around the areola to  help make the breast pointiness flatten and take on the shape of the underlying implant. I really dont know if that is your situation without an exam or photos, but a board certified PS could help to guide you with an in person visit.Best wishes.