/vrg/ Assetto Corsa

Which version do I buy?

Your best bet is to grab the Ultimate Edition with all of the DLC.
DLC can be pirated if you want to save a couple bucks, but it's really not worth the hassle.
Don't pay full price, this game goes on sale all the time.
https://gg.deals/pack/assetto-corsa-ultimate-edition/
Be sure not to get the base game if you ever intend on buying the DLC, there's no option to compete the bundle.

General setup:

Content Manager is a much better launcher than the default one, and the free version should do everything you need.
https://assettocorsa.club/content-manager.html
Install CSP through Content Manager under Settings>Custom Shader Patch, this improves lighting and is required for some mods to function correctly.
Under Settings>Assetto Corsa>Video set "Rendering mode" to either OpenVR or Oculus Rift depending on what you're using

Recommended Tweaks

Under Settings>Assetto Corsa>Video, uncheck the box for Sunrays since they don't work well in VR
Under Settings>Assetto Corsa>Controls, bind buttons for "Teleport to pits" and "Reset camera in VR"
Under Settings>Assetto Corsa>Windscreen FX, check the box for "Remove dirt completely" to clean your windshield
Under Settings>Assetto Corsa>View & UI, lets you set Units to Imperial if you prefer that
The Sol mod allows for improved weather and night driving
https://www.overtake.gg/downloads/sol.24914/
Sol 2.2.9 Mirror: https://mega.nz/file/8EYWlbKT#vP5YYaM3_DG3FAOw35zRZqmuXL6KIM5xiCPRdW1gRmY
Comfy Map gives you a minimap to help you tell where other players are
https://www.overtake.gg/downloads/comfy-map.52623/
Comfy Map 0.0091 Mirror: https://mega.nz/file/wcYmGarA#6HL_Ukm4oI1bPIMzWBExWpgxLRsh-oglxbrc-syNh9U

/vrg/ multiplayer server details:

NA Details:
Server: vrg racing
Pass: tfwnodriftfu
Mods: https://mega.nz/folder/xN4EGDiC#cvLFrD3kTpS_8pU7eNVvPw
Time: Wednesdays at 8PM Eastern Time, and occasional Friday night cruising.

EU Details:
Server: VRG EU Racing Club
Pass: 6969
Mods: check the announcements in the thread for links to the current mods
Time: 19:00 UTC every other Monday

If you want a physical wheel:

T150/TMX is usually the cheapest decent option.
G29/G920/T300 are generally the recommended entry level options.
The /ovg/ hardware guide has a lot more information if you want to go more in-depth:
https://docs.google.com/spreadsheets/d/1uLKMbKwweUZ3QvFeNs8UeycZbDyo0McxGj7T6uTaTNo

If you want to use your VR controllers as a wheel:

https://github.com/mdovgialo/steam-vr-wheel/releases
A few regulars still use this, it's not as good as a real wheel with FFB, but it's better than a controller.

Extra tweaks:

Generating a LUT curve for your wheel can help improve force feedback if you're using a wheel.
https://www.racedepartment.com/downloads/lut-generator-for-ac.9740/

Crew Chief gives you info over voice including a spotter
https://mr_belowski.gitlab.io/CrewChiefV4/GettingStarted_General.html
https://mr_belowski.gitlab.io/CrewChiefV4/GettingStarted_GameSpecific_AssettoCorsa.html

Race department has a list of recommended tweaks you can look at as well, but a lot of these come down to personal taste.
https://www.racedepartment.com/downloads/assetto-corsa-vr-guide.19037/