Both the highlighters I received were recommendations from Gabby (VelvetGh0st) on Youtube.
The first highlighter she swears by is the more expensive high end NARS Copacabana Highlighter. This is described as an illuminator but is basically a highlighter. It is BEAUTIFUL!!! It gives my cheekbones, cupids bow and other highlight-able areas of my face the most gorgeous pearly pink glow and really brightens them up. It looks incredible, especially in natural light and really draws attention to my cheekbones. This costs around £23, depending on where you get it and we can get it here in the UK, which (I know!) is very surprising. It is easy to pick up from any sort of big department store like Debenhams or John Lewis. Though it is pricey, you literally just brush your brush (or finger) against the opening of the product, to get the tiniest sprinkle-sized drop for each cheekbone. So it lasts for ages! I have had this over a month now and it looks just like brand new! If you have the budget for this and are as obsessed with highlighters as I am, definitely give this a go!
The second highlighter I got was what Gabby galls the 'NARS Copacabana Dupe'. It is the Soap and Glory Highlighter Stick in the only shade they offer 'Glow All Out'. Unfortunately, I regret buying this, Purely because it is so good! That sounds silly I know. But it is such a good dupe (though just a bit less good, hence the word dupe) for the NARS Highlighter, that it has made me feel silly for buying the NARS one. Long story short, if you don't have the budget or aren't a huge fan of Highlighters, this £8 dupe is perfect! I find this harder to apply as it is not powder or liquid. It applies creamily to the cheeks, but is best blended with fingers. I don't like to use my fingers when doing my make up, so if you are like me, don't go for this; it won't blend with a brush. Though this is a very good dupe, I do prefer the NARS one.
So there you have it! Both these highlighters are very similar, and give the most gorgeous pearly pink glow to the cheeks. I would highly recommend both :)