Well, you have decided to be an armed member of society.
and
You have picked out a handgun/pistol you like.
Now what?
Assuming you are in a place where you can legally carry a weapon and have the proper paperwork from the guv'ment.............
Well you have to carry the gun and conceal it.
Carrying
First choice is on the belt, either strong side(preferable) or cross draw(not as preferable), last choice is small of the back.Either Outside the Waist Band,OWB, or Inside the Waist Band,IWB.
Second choice is in a BellyBand( elastic 4inch wide or so band that has a sewen holster in it and secures itself together with a Velcro closure. Super concealed but slow to draw the weapon
Third choice is a Shoulder holster. If you have ever worn one of these they never work like they show on TV or the movies.
Fourth choice is an ankle holster
Fifth choice is in a Cargo pocket of the specialty made cargo pants that have a pistol holster in the cargo pocket.
Sixth choice is in a fanny pack, but these scream GUN! like a "shoot me first vest"(more on the vest later.
The above were "on-body carry" which is always better because the gun is always on you.
Eight choice is in a jacket or coat pocket but this can be complicated because of weather, leaving the jacket behind etc.
Ninth choice is in a purse, backpack, briefcase. whatever. These can get lost, left behind etc. and there goes your weapon.
Tenth choice is in your pocket. Yes this is "on body" but guns that will fit in most folks pants/skirt pockets are not full size and don't have the stopping power. BUT a mouse gun is always better than no gun.
Holsters. be prepared to buy a few before you find one you like. Start out with cheaper ones to determine what you like before you plunk down $100 for a custom. If you ever go that far.
Speaking of custom holsters. If you like a gun that is not on the top tier sales wise in the USA you will need to purchase a custom holster in the style you like AND be prepared to wait 6 months for the holster to show up. [I had a HK USP full size I wanted to carry for a while, you said it, I got a cloth universal IWB short term and waited the 5 months for the custom]
More on concealment later..................