Yeah, I mentioned the NeosVR stuff on page 3. Hasn't been updated in nearly a year, but it has also been one hell of a nasty year, so that's understandable.
There's more than those 3 vore worlds in vrchat, and I've listed most of them in this thread, but to save the trouble of loosely skimming through 3-4 pages, I'll summarize them here.
First, as was already mentioned, there's Ante's Cartoon Animals. There are two versions of it, an old and a new. The new version has a giant snake avatar that can hold other players in it's stomach for a little roleplay between players. Both versions of the world have a macro sized maw and stomach you can walk around in by clicking a sign in the back of the room, but the old version of the world has far more animated internals.
Old:
https://vrchat.com/home/launch?worldId= ... 27b34330e9New:
https://vrchat.com/home/launch?worldId= ... 74ca579e5dSecond, there is another world by Ante, "Jym Bus". It features a fully animated vore sequence that you can watch in VR! You ride on a bus that is slowly swallowed whole by a macro fox, with a button to even remove the bus around you for a better view. Really a treat to see, even outside of VR.
https://vrchat.com/home/launch?worldId= ... 52d91c4f02Third, there is the "Just Vore" world. It has a stomach in the back that you can teleport into. The unique feature of this world is that everything in the stomach is broadcasted onto an overlay stomach panel that you can position over your own avatar to make it look like the players walking inside of the stomach are actually in fact your stomach. Good for pictures and some roleplay, but not as much content solo.
https://vrchat.com/home/launch?worldId= ... 1d973f7ba9There are 3 vore worlds uploaded by a Japanese user. They all involve going into the mouth and getting teleported into the stomach of a giant anime girl. One involves riding a train right in, another a ship over an ocean sailing into the maw of a giantess, and finally is a giant robot girl who you crawl inside supposedly for maintenance.
https://vrchat.com/home/launch?worldId= ... 93b46c13d8I'll just link one of them, the robot girl, but if you enjoy that one, I'll explain how to get to the others. Once you are in a world, you can go to the world tab of your menu, and the world you are in should be at the very top. Click on it, and you can see who created it. Click on his name and you can see all the world they have made. You can see the others there.
I might not specifically call it a vore world, but an honorable mention goes to "Uncle Koopa's Jiggly Heaven". It's a collection of anime avatars, but of special note is that the entire map takes place on the body of a giantess that you can walk around on. You spawn on top of her tummy, and you can even bounce on her tits. If you approach her mouth, she opens wide for you to walk right in! It's not all that impressive of a view inside, and you can't go any deeper than her maw, but it is interesting seeing her react to you and invite you inside.
https://vrchat.com/home/launch?worldId= ... 01f60b57cfAnother honorable mention goes to "Size Shift: Depth". This one requires being with another player. Once there you can set the size of the larger player on a menu on the wall. The player you want to be large goes through one door, while the player to be small goes through the other. Once at the height of macro or micro, all kinds of content can be enjoyed, from licking over the small one for a bit of mawplay, to feet or paws (especially if the macrco has full body tracking!) You can also pick up a green glove from the wall to pick up other players!
https://vrchat.com/home/launch?worldId= ... 4f00547922There is likely another world or two I'm forgetting, but that's all I can think of for now. If you are seeking to explore vore content purely by yourself in vrchat, your options are a little limited. I suggest finding some friends you can roleplay with there, even if it's a little awkward at first. There really is nothing that can compare to having a predator with full vr tracking doting on and teasing you. Or, you know, eating you! There are chairs you can place inside of avatars to fully carry players inside~ Then you can hear your predator while sitting inside of them, taunting you like the food that you now are. Or simply checking up on you, whatever you're into.