I remember how confusing it can be, but you have to know what you are expecting your cutting machine to do. Can you answer some of the questions below, and we can help guide you a cutter or where you might begin your search.
do you have a computer?
will your cutting machine be near a computer?
do you have a laptop?
Are you wanting to create while at a crop?
will you have internet access?
are you willing to learn a new piece of software to do what you want to do?
do you want to cut nearly any image or font on your computer?
Do you want to cut just paper? Chipboard? Vinyl?
How big do you expect to want to cut? 6" wide, 12" wide, or more? how about length? 12" or 24" or even longer?
Do you want to use cartridges with shape and fonts, and not worry about other designs? Or will you always be yearning for that other cut of some other shape? Cartridges on average are $25 (on ebay... some are more, some are less)
I personally started with a Cricut, and quickly found that I wanted more, and was able to buy the SCAL software. BUT you can no longer buy a copy of SCAL and have it work with any Cricut. (same with MTC... it won't work with a cricut).
SO, many folks gave up their cricuts and have gone with other cutters.
I went with the Silhouette Cameo. And I love it. I cut SVG shapes that I create myself, OR i can utilize the Silhouette on-line store and buy cutting files for 99 cents each. Also, they do have a subscription program too. Silhouette also makes a Portrait cutter that cuts a smaller width than a Cameo. I also use the Silhouette Studio (SS) software to cut. (but SCAL3 also works great).
All of the above software (SCAL3 & SS) are available to download for free if you want to play around.