The best way is to polish the paint. Does it look like the right side of this picture...or worse?
There are a many different polishes, pads and processes.
There is no "wipe it on and their all gone" magic product.
You can not do by hand what you can do with a machine.
To obtain that swirl-free "Show Car" glassy finish. It takes time, effort, energy, skill and knowledge.
Do you want to learn to do it yourself or get it done and be done with it? Choose wisely my friend!