What sort of eyeliner are you looking for? Something you can use on the waterline, something you can smudge, is waterproof? I'm actually a huge fan of the PowerPoint eyeliners, because they start off quite soft so you can either go for a precise look or you can smudge it, but it will become waterproof after it has dried. PowerPoint is not water-line safe though, so if that's what you're looking for, you could try the Technakhol liners, which aren't waterproof but are still quite long-wearing. You'll also still get the benefits of choosing between precision and smudging. I also like that they don't need to be sharpened.