I've been reading novels for quite a while. I've seen reincarnated as full grown adults, babies, opposite gender, orc, demon, elf, goblin, dragon, sword, battleship and almost any kind of animal. But i don't think i've ever seen reincarnated as a dwarf. Prove me wrong
Yup, think it was on Royal road, there's even one for 'attack helicopter'. As for Op... huh, don't remember any, though there is one about a dwarf reincarning as a dungeon core, than making a new body.
I didn't saw a dwarf reincarnation, but I saw a caterpillar reincarnation ;D "My journey to Godhood as a Caterpillar" on Webnovel
This is going to be a challenge, but it probably exists if you include original stories like those from Royalroadl, or Scribble Hub. If you're only looking for a translated story, i.e isekai than you probably won't find anything. By Japanese standards the traditional dwarf is just too rough and crude, so they're either side characters, or redesigned to look more cute. Which is how you end up with the dwarves that look like small animal people, or children.
If you get reincarnated as a dwarf you better the most golden finger ever or else you'll be depressed. You'll end up short and hairy and so will the women in your race lol. I've never seen any dwarf reincarnations or i just don't remember but this one manga i used to read is about some kid that transmigrates into a dwarf village and is basically raised by them and learns forging and such, I dont know if there is a novel for it but the manga is called legend of Phoenix without "the" lol
The hairy women, depend on the fiction I believe; for example in the managa ID the greatest fusion (or whatever it's name was), dark dwarves (or whatever they were) were loli-ish, with their queen being... muscular. Another one is Muimui-tan. lol, can see why people don't notice it.