Any particular genre? There's a ton of good ones, but aside from yaoi, I mostly read shoujo webtoons. There's "I Love Yoo," "Let's Play," "Siren's Lament," "Where Tangents Meet," "Talk to Me," "Winter Woods," "Untouchable," "Diamond Dust," "My Dear Cold-Blooded King," "Drug Candy," "American Ghost Jack."
I could keep going. Lol.
If you're into Fantasy, Witchcraft & Magic I recommend Hooky!
Although it does have some romance (both f/m & m/m), it's more of a subplot and the story doesn't directly focus on it.
Truly an underrated webtoon & it's such a shame since the art is super good!
link: https://www.webtoons.com/en/fantasy/hooky/list?title_no=425
Another webtoon I recommend is Seed! If youre interested in sci-fi or the game Portal then it's a webtoon you should def. check out! Short summary: A mysterious & dangerously powerful A.I ends up in the hands of a teenage girl who downloaded a seemingly "innocent" chat-bot app.
The art is gorgeous and it has a lengthy amount of chapters. Currently no romance subplot for the main characters as of right now.
link: https://www.webtoons.com/en/sf/seed/list?title_no=1480
Does anyone know good Webtoons without Yaoi & Shounen-Ai? For example "Bastard". It was amazing. (っ˘ω˘ς )