This is everything people have tagged ‘office romance’ there’s quite a bit, but I’m sure you’ll be able to find something nice.
https://www.mangago.me/tag/Office%20romance/?page=1
i followed this back then hoping for recs too! hope you get to share your list ₍ᐢ. .ᐢ₎ ₊˚⊹♡ here's a few titles off the top of my head, though they're kinda popular so you might've already read them
https://www.mangago.me/read-manga/office_hero/
https://www.mangago.me/read-manga/cat_s_suit_dog_s_tie/
https://www.mangago.me/read-manga/the_boundary_of_fragrance/
https://www.mangago.me/read-manga/no_moral/
https://www.mangago.me/read-manga/while_you_were_letting_your_guard_down/
https://www.mangago.me/read-manga/perfect_buddy/
https://www.mangago.me/read-manga/on_or_off/
Here, I looked around and found a few lists for you
Mostly straight stuff
https://www.mangago.me/home/mangalist/445674/
https://www.mangago.me/home/mangalist/1041554/
https://www.mangago.me/home/mangalist/1802740/
https://www.mangago.me/home/mangalist/1602861/
BL
https://www.mangago.me/home/mangalist/1001081/
I had trouble finding specifically office romance lists that weren’t hetero stuff. Hope these are helpful.
I found a GL lust
https://www.mangago.me/home/mangalist/4020774/
It does suck, but I am finding some gems in the mix so I would do the process again with other tags maybe whenever im in a good mood lol. Thank you so much for finding all these lists for me as well and ik the gl list took a lot of surfing to find, considering how it's more uncommon than bl and sl on this site. Tysmmm.
Honestly I don't usually look for office romances myself as I have this one sided hatred to boss × employee works and only like a select few of that trope so needless to say, I'm quite picky, but when I posted this I had an itch I wanted to scratch all of a sudden.
I feel that. I get random reading cravings too, but I’m already reading most of the stuff that satisfies them (〜 ̄△ ̄)〜
I’m also not a fan of boss x employee stuff because of the power imbalance. You’re welcome for the lists. I have a certain process for finding them that’s similar to sifting through the tags. I went on the link I sent you for office romances, picked a story from it that has good ratings, and looked at the lists that contain that story to find lists that are specifically labeled as office romance. Do that with a few different genres like GL, BL, and SL and you can find some good lists. Though it can take a while.

Any romance genre, sl, gl or bl! I would prefer if it was a more longer series(more than 20chps) had good comedy, and actually took place in an office. I would prefer if it wasnt very smut heavy and more lighthearted and I also would prefer coworker x coworker or ig boss × secretary.
Thanks in advance