Looking for positive, overall happy reading
No LitRPG, or at least fiction which doesn't focus on boring level-skill-number progression (The Wandering Inn for example has classes and levels but they're not a defining feature), no harems for the sake of harems, no or minimum sexual content.
If you link anything that may fit but clashes with said preferences, please include a little description.
Half a Step Away From Love (hiatus)
How Do You QA Test a Tsundere Android? (complete)
God Vessel Online (hiatus)
I can vouch for Threadbare (It is a LitRPG though), but I have not read any of the other stories.
I also have a few suggestions:
The Voice of The World (ongoing)
The Good Necromancer (ongoing)
The Daily Grind (ongoing)
There Is No Epic Loot Here, Only Puns (ongoing)
(LitRPG dungeon novel)
Necromancer and CO. (complete)
(while not super "happy," the MC has a good heart. It is also one of my favorite short stories)
I'm just saying this, because your account is relatively new and you might not have seen it yet. From what I know, all of his fictions have a happy end, well it's always an OP MC, usually not too dark, but with some dark elements here and there. It's enjoyable to read, I'd say they are pretty solid in writing, pacing, characters and all that. Some of his MCs might be a bit of an asshole, but with a sweet centre.
My personal favourite is Law of Shadows:
And I think what fits your description right on is There is no Epic Loot here, only Puns. It's no hidden secret fiction and probably still pretty high up in trending, but very enjoyable to read. Delta, our MC, is made into a dungeon core and should be trying to kill as many humans as possible to get strong and protect the physical core of the dungeon. But her moral compass is as strong as they get, along with her punnyness, so she shakes things up a bit, making for one of the weirdest and probably most entertaining dungeons in the realm.
I should also include my favourite fiction at the moment, The Masks of Under: https://www.royalroad.com/fiction/19461/the-masks-of-under
It's dark, it's twisted and it is not for mortals, but Lydia is stuck in Under anyways, keeping to her motto of "panic later" and coping like she always does: with humor.
A little backstory: Lydia works as a medical examiner (i.e. doing autopsies) after finishing med school, having also worked as a paramedic, she is not easily shaken, but Under will challenge that. She is both strong and soft, empathetic, but true to herself, not optimistic, but not one to give up either.
I almost feel bad, because I think I might have been spamming this a bit recently...
It does fit the whole enjoyable read (incredible writing, vivid characters) thing, our MC is both realistic and mentally strong, not one to break and throw her morals out of the window. Warnings about gore and sexual content should be taken notice of (most explicit sexual content can be skipped and it is just a few chapters, with warnings at the beginning).
Anyways, @OP, I suggest you try Continue Online by Frustrated Ego. https://www.royalroad.com/fiction/2247/continue-online (Completed series & officially published. Recently re-upped on RR).
And here's some more completed works:
IMProvised Combat http://royalroadl.com/fiction/3974 (NaNoWriMo story)
Trapped the GM http://royalroadl.com/fiction/3984 (NaNoWriMo story)
Arch INC http://royalroadl.com/fiction/12895 (Full novel unless it got pulled for publishing. I haven't checked)
The Worst was Approved http://royalroadl.com/fiction/5050
I'd recommend more, but it's been a while since I read them and they're probably bitter-sweet rather than have a clear happy ending. Feel free to check them out in my 100+ things to read list linked in my forum signature.
I haven't read any of them except for Threadbare.
The OP of the post said that the stories didn't necessarily have to be happy, as long as the MC has a strong moral core.