So, coming from a chocolatier's point of view (that's me), I'm gonna list out, with complete commentaries and everything else, on the different types of chocolates, and where you could possibly get them. And of course, the rare, the exquisite, and the affordable ones are also included. Finally, if you ever need some handy tips, don't eat too much chocolates at one sitting, it totally makes you puke. Seriously.
For those who are a bit well-off as compared to the others, or if you have tons and loads of money to spare, do try one of these below mentioned chocolates.

Noka Vintages Collection at $854 per pound Noka chocolate from Dallas.
Ok, I know this is a tad too expensive, though from what I've heard from chocolate connoiseurs worldwide, this chocolate spells rarity, and taste is what they've got. They are not simply the melt-in-your-mouth type, but rather, they are the ones that makes the taste stay in your mouth, making you crave for more. Although black in colour, but do not mistake it for dark chocolate, though I would say that the chocolate content is about 75%, perhaps?

Godiva "g" Collection at $120 per pound.
If I am not mistaken, this collection can be found in New York, and also Belgium, where the brand name originates from. See the little chocolate hearts? This is a perfect gift for the ones you love, though cliche it may seem. Again, not another typical melt-in-you-mouth type, rather, a type of chocolate that if you have the expenses, may want to try. Another one of the world's rarest and finest chocolates from a well-known chocolatier.
For those who are looking for affordable, yet extremely exquisite chocolates...

Feodora and Droste chocolates, going for less than S$20 from chocolate outlets from Cocoa Trees, or for the smart ones, Droste chocs can be found at NTUC supermarkets!
One of my personal favs of all time, this set of Feodora and Droste chocolates come in all shapes and sizes, from choc bars, to choc pastilles, to choc sticks for the Feodora ones. They are affordable, very nicely packaged, and also, made to order for occasions! One tip to take note of; drink lots of water when you are eating these chocolates, THEY ARE DEADLY! Especially the Droste lait pastilles, they ooze of sweetness!
For the all-time old school favourites...

Toblerone bars, going for less than S$5, available at all shops selling chocolates, islandwide
As I said, Toblerone chocs are making a reappearance after revamping its image for more than a few months. So anyways, what are you waiting for? Go get one of these bars, be it the white chocolate, the dark chocolate, or the milk chocolate bars now for that familiar taste! Remember old-school, darlings! And the coolest thing about them? They have traces of caramel bits and peanuts in them! Chewy, yummmmmyyyyyy!!!!

M&Ms, the bestest children chocolates, selling for S$2 per pack, or less, depending on the size
Ah yes! Another one of our favourite coloured chocolate hard pastilles! The taste is gorgeous, it's simply on-the-go, terribly fuss-free, and who needs Drake Noir when you have these? It's cheap too! And of course, really nice to look at, nice packaging, and of course, not forgetting, the familiarity of the round little pastille that has hands and legs. And, and, flip on the other side of the package, and you might see some little quiz that you might perhaps wanna try!
So, there you go! Some finest and affordable chocolates that I might possibly sieve out from the millions of them out there. Of course, don't be afraid to try your luck and eat whatever chocolate that intrigue you, and don't worry about the diabetes thingie. It comes secondary. And remember, chocolates are meant to be eaten slowly, so take your time to enjoy every single ingredient that goes into the making of the chocolate, yah. Including the cocoa. :D
Meanwhile, happy chocolate-pigging, everyone!
Love,
Shakirah, your chocolate connoiseur :) :) :)