Hi,
Penis extenders work. They also rectify curvature - 'bent penis'. Cheap ones, you would not be able to wear for longer time (You need comfort). It would cost several hundred $'s to get a proper one. Needs using many hours, many months...
Pills & vitamins, food - name it does not increase the size. (You get only full erection from using pills such as Viagra, or similar - but it is not a 'growth', and you would do it only in case you are not getting a full erection naturally.)
Natural penis enlargement works. Most recommended of all. You can increase both length and girth. Dramatically. Takes time and lots of work. May cost nothing, may cost $ 50 to join and get all info or similar.
Penis enlargement surgery works. It is risky and very expensive. The last think on earth anyone would do.
Vacuum pumps give you few days larger looking penis. I've read if you use it for very long time, almost daily results are permanent. However, I'm not able to confirm this unless you find someone
who's done it.
The fact I know is the enlargement achieved by pump causes penis to be 'spongy' - not rock hard.
If over used (too much pressure or too long) it may cause various deformations of penis.
In small amounts it stimulates penis.
Healthy lifestyle is desirable. Especially no smoking.
Study the source.
And enjoy life
.