I know it’s not a new thing, but I recently discovered lip liner and I like it A LOT. This is Lip Cheat by Charlotte Tilbury in Pillow Talk.
It's almost the same as my natural lip shade. I line my lips a little outside the edges and then fill in. I've tried adding gloss, but I like it better by itself.
The only con: It needs to be sharpened after every few uses and you'll need to buy a sharpener because it doesn't come with one. I got this one.