It's so hard to find a good BL Manhwa

Are you talking about ang-ang?

ACCIDENTALLY DISLIKED.
BUT I AGREE!!!

I hate when I've struck absolute GOLD and now nothing else compares

Examples:"Again" and "Shutline"
I keep asking for recs but none of them compare
The closest I got for Shutline was roses and champagne but I've already read that

I got the same feeling but with "rainbow city" and "little mushroom" but mostly rainbow city. i fear no other bl will ever give me the same feeling rainbow city had given me
┗( T﹏T )┛

These ones are somewhat like again relationship wise as in healthy relationship :

Touch Up
https://www.mangago.me/read-manga/touch_up_jujucat/

A mail from my dead lover
https://www.mangago.me/read-manga/a_mail_from_my_dead_lover/

Romance, But Not Romantic
https://www.mangago.me/read-manga/romance_but_not_romantic/


As for similar to shutline, try this one :

Walk on Water
https://www.mangago.me/read-manga/walk_on_water/

- It doesn't has as much smut as shutline but the sexual tension is quite good. Its a bit more plot focused.

Also this one :

Boss Bitch Baby
https://www.mangago.me/read-manga/boss_bitch_baby/

Also if you liked the interesting plot + romance as sub plot kinda thing in roses and champagne then check out this list :

https://www.mangago.me/home/mangalist/2758080/

Wet Sand is closest to Shutline and Under Green Light
https://www.mangago.me/read-manga/wet_sand/
A good Roses and Champaign alternative is Codename Anastasia
https://www.mangago.me/read-manga/codename_anastasia/
For Again, I recommend Kill the Lights or My Hyung’s Sunbae
https://www.mangago.me/read-manga/kill_the_lights/
https://www.mangago.me/read-manga/my_hyung_s_sunbae/

doesn’t code anastasia have rape in it tho

Yes it does. That was a reply to @Spiderman about an alternative to Roses and Champagne

Try these also:
https://www.mangago.me/read-manga/the_third_ending/

https://www.mangago.me/read-manga/define_the_relationship/

https://www.mangago.me/read-manga/smyrna_capri/

https://www.mangago.me/read-manga/ghost_window/

https://www.mangago.me/read-manga/the_pizza_delivery_man_and_the_gold_palace/

OH TY THESE ACTUALLY LOOK GOOD. ADDED ALL TO WANT TO READ LIST.
Except the psychological one cause I don't do well with those
And walk on water I fear I dropped bc when I was reading it while it was still being updating there was a spoiler Ed the MC and I didn't wanna go through reading about it lol

Ty!!!!
The comments for wet sand throwing me off I'll have go let it marinate a bit
I've been recommended code Anastasia! I'm sure I remember seeing the title before, not sure why I didn't look at it
And I've read kill lights already AAAAAAAAAA
That one and Again are perfect for that type of plot

TYYYY Some of these are actually in my want to read list already! And I read smyrna & capri a few days ago. Finished it like just yesterday or the day before after a friend recommended it to me. SOOOO GOOD

No cuase actually why are good bl manhwas so hard to find, I barely read manhwas anymore cause of how being I find them. Anyways, here is a list of some really awesome bl, lots of them are peak(to me)
- https://www.mangago.me/home/mangalist/2454722/

Your welcome <3
The psychological one isn't really crazy psychological it's just horror, that too not that scary. The characters have a good relationship.

As for walk on water, the r@pe as bad as it is, it happens in just one chapter and that too was done by a side character, the ML never did so but still i respect your descision.