Best way to increase girth at the base?

After each pump run in a session put a tight-ish cock ring on. Also. When you masturbate for fun, remind yourself to not just focus on the head (which most guys do). Spend time grabbing from your base and shaft stroking. Tighten using your pinky and thumb and and really get some hard pounding motions on your down stroke.
 
I like to have more girth at the base of my cock. Any method or exercise can help with that? I have a pump too.
make the contrary of most of guys do. Just grab your cock around with your thumb an fingers pressing hard and go down while you do a kegel so the blood remains at the base of your cock that preasure will expand the base of your cock, you will see that little by little your cock base will grow. You can also make the same thing while you wank and you will see that is a pleasant feeling it is much easyer to make a thicker cock that to make a longer cock.