Do you prefer jar/pot form like Benefit/Korres or do you prefer stick form like Fresh Sugar?
Do you have a price range? sheer lip color/balm from YSL/Dior are excellent but they are usually >$30.
Are there any ingredients you want to avoid (parabens)?
How much moisture vs. color do you need/want? Fresh Sugar is the most moisturizing lip color, while others are ok.
Think about those and use the filters on the left side, that should reduce the number of product down to a reasonable amount, then you can read product reviews.
Also, even for the most vivid lip color, they are wearable/sheer/natural if I dab them on gently using my finger, smoosh both lips together, then press a napkin over it.
To find a shade of a lip product that looks natural and almost mimics your natural color, pucker your lips and match a shade to your inner lips. This will give the most realistic tone to stick with. Lorac and Laura Mercier make great natural toned lipsticks that have great formulations so they don't feel dry or wear off quickly. For something more sheer and allows your natural color to come through a bit, try Benefit's Benetint lip balm. It's a universally flatterying balm with SPF and has a bright, cherry rose tint that comes out to a very sheer wash of color on the lips that gives great shine and a "just bitten" look. I love wearing it alone and even topping off natural lipstick colors with it. Tarte's lip stains have some sheer/glossy shades and shimmers that you can look to as well!
I like using lipstick that has a more neutral/brownish undertone that is sparkly or very shiny so it doesn't look old. My favorite is Cliniques lipstick in sugared maple. its like the only one sephora doesn't carry but cliniques website has it
Answered[ Edited ]
Sugar Honey Tinted by Fresh is a really natural shade, I love using that one when I don't have the time for anything more dramatic.
I've been using the Chubby Sticks by Clinique but those really depend on the shade of your lips. I use Fuller Fig and that one looks natural on me, but it's definitely much darker on some of my friends.
It just depends on your natural lip color and how much pigment you really want.
There are many more to choose from, these are just my personal favorites. Don't be afraid to try certain colors even if they look super pigmented in the package, sometimes they look pretty neutral too!