I like macro photography, but many photographers don't.
If you are just curious about macro/close up photography, I would NOT recommend you buying a Macro lens. There are many good reasons to buy macro lenses other than macro photography, but just trying out to see if you like macro is not one of them.
Macro lenses are expensive! They have other than macro uses, but make sure that you really need a macro before forking over the cash!
It is quite possible that once you try macro, you may decide it is not for you.... or you may become a macro fan. Don't spend big money until you find out.
If you have photography friends or are a member of a club, ask if you can borrow a macro lens.
If you can't, then ask if anyone can lend you a set of extention tubes.
Some stores may allow you to rent a macro lens or extention tubes. As a last resort you can always buy a set of extention tubes which are a lot less expensive than a macro lens.
The other stuff you will need for macro is a tripod. Yes there are thousands of photographers who can do macro hand held. I ain't one of them and I have been doing macro for a bunch of years. In my opinion, trying to learn macro photography handheld is difficult.
I would also recommend trying to borrow/rent a single axis focusing rail. They are not expensive if you want to buy one. A focusing rail is a movable rail that you mount between your camera and your tripod. It allows you to precisely move your camers toward and away from your target. Instead of trying to manually focus with your lens, you are focusing by moving your camera. Focusing in macro is a matter of milimeters. This can be tough with some lenses. Generally, AF and macro may not work well together. I usually turn AF off when doing macro. Other photographers say they have no problems with AF in macro.
With DoF of macro being razor thin, AF may get you close, but not close enough to the percise focus you need.
There are tons of instructional articles on the Internets Tubes.
Macro photography is fun for many photographers, not so fun for many others. Don't spend a lot of money trying to find out if you like macro. There will be plenty of time for spending money after you find you like macro.
Good luck with this.