Kijiko is popular for eyelashes. They're 3D. Kijiko has several varieties, including colored lashes and lashes for children.
I don't have them in my game right now though. (Not sure why, but probably because I removed a bunch of cc to have more room, and decided to just keep my main eyelashes and a specialty pack.)
kijiko-catfood.com/3d-lashes/ My main eyelashes right now are a skin detail pack. I like to have them as skin detail, because it attaches them to every outfit automatically. It's nice for characters that have naturally long and/or thick lashes.
They're not as nice as the Kijiko, because they're not 3D. But it doesn't matter unless you zoom in for a close-up. But they are very nice. I'm not sure, but I believe they can be worn with 3D eyelashes. (Because I'm pretty sure that some of my characters did have both, before I decided to streamline my cc.)
I'm not sure, but I think it's this pack from Praline Sims.
https://thesimsresource.com/downloads/details/category/sims4-makeup-female-eyeliner/title/skin-detail-lash-pack-n01/id/1451690/I am definitely keeping my skin detail lashes in game, but I am thinking of putting another pack of 3D lashes back in to use as "mascara" for Sims that want thicker lashes for evening and party looks, and less for sleep and swimming. I might use Kijiko's colored lashes (I miss having colored lashes), but it might be fun to try something I haven't used before.