I know friends to lovers is a category but I'm looking for something similar to the following:

19 days
tamen de gushi
kakao 79%
tomo-chan wa onnanoko!

I love the focus the friendships get and the comedy in each is similar.

Gekkan Shoujo Nozaki-kun -- Though in this case, the female MC knows she's in love while the guy is oblivious. (But 19 Tian is the same, right?)

Horimiya -- After I stopped reading, it appears this underwent a shift in tone, so not 100% sure whether it fits your request any more.

Thanks but I've read both of those. Well technically I watched the Nozaki-kun anime and the manga is on my hold list, perhaps I'll pick that up again. I agree with Horimiya, it's definitely shifted but I'm still reading it (its not as enjoyable as it was in the beginning). Thanks though, these are definitely exactly what I'm looking for 😀

Sisterism- they never realize that they're in love, but the attraction is still there.

something like Toradora? https://www.mangaupdates.com/series.html?id=22299
maybe Golden time? https://www.mangaupdates.com/series.html?id=69100
or Ouran? https://www.mangaupdates.com/series.html?id=947

all three of them have anime adaptations, but I'm not sure how much of the source material gets covered, or if it goes through the whole thing without branching off into a different path.

Sisterism sounds interesting, if not perhaps a bit frustrating. Thanks, I'll check it out.

As for Toradora, Golden Time, and Ouran. I've watched Toradora and the manga is on my to read list (whenever scans are active again or I have money to actually buy things. Whichever comes first). Golden Time, I attempted the anime twice and couldn't get into it, not sure if the manga will have the same problem. Ouran, I watched the anime and read some of the manga, its on my unfinished list and I can't remember where I left off. I've attempted to pick it up again a few times without getting very far (maybe I should just start from volume 9 where the anime ends rather than starting the manga over again from the beginning). Thank you for the suggestions though!

Houkago Play vol 1-3 - dialogue centers around video games

Nineteen, Twenty-One - cats

Our Relationship Is...
Studio Salty
NG Life (here the romance is just one of the subplots tho[m]
Orange Chocolate?
Taiyou ga Mite iru (Kamo Shirenai Kara)

You might want to check this and this thread

DONDAKEE!!

Max Lovely! is a good one I think. Also Brand "Peace" and maybe Atashi wa Bambi. And you can check out the Friends Become Lovers category tag.