This is a OLED screen so is the best you can buy.
eBay
Housing For Oneplus 6T Battery Back Cover Glass Door Matte Shiny 6.41" Repair Replace Rear Case Logo
Aliexpress UK
eBay
3Pcs Soft Matte Hydrogel Film For Oneplus 6T 7 7T 8 9 8T 9R 10R 10T 11R 10 11 12 12R 13 Ace 2 3 5 Pro Frosted Screen Protector
Aliexpress UK
The phone is in pristine, near-mint condition. The phone may include accessories (or not) and could have very minimal signs of use. Overall, it’s in excellent condition — almost like new. Sold as-is.
eBay
For OnePlus 6T Battery Back Cover with Camera Lens Mobile Phone Replacement Parts
Aliexpress UK
Protect your precious OnePlus phone with this high-quality hard case. The matte black finish gives it a sleek look while the anti-shatter, anti-scratch, and shockproof features ensure its durability.
eBay
Case for Oneplus 6 6T 7 7T Pro funda bamboo wood pattern Leather phone cover Luxury coque for Oneplus 6 7 6t 7t pro case capa
Aliexpress UK
Biggest OnePlus Battery ever. Bluetooth® Audio Codec: SBC, AAC, aptX-HD, LDAC, and LHDC (when paired with OnePlus Buds Pro). 12GB/16GB LPDDR5X with OnePlus RAM-Vitalization. AI Starts with Nord. 256GB / 512GB UFS4.0.
eBay
For Oneplus 6 6T 7 7T 3 3T 5 5T 8 8T 9R 9RT 5G 9 Pro Wallet Flip Case For One plus 9 9rt 9r 8 8t 7 7t 6 6t Cover Phone Case Etui
Aliexpress UK
>128GB + 8GB RAM. > Unlocked. 1 x SIM OPENING PIN. For any new / recent account created we reserve the right to do further checks on your details to avoid any fraud. I RESERVE THE RIGHT TO CANCEL THE ORDER.
eBay
AMOLED For Oneplus 6 6T Display 5 5T LCD Touch Screen Digitizer Display Replacement Assembly Parts For ONEPLUS 7 7T LCD
Aliexpress UK
This is a TFT incell LCD, not an OLED screen.Due to the fact that LCD screens use a backlight panel the screen will be a bit thicker, also as a result of the need for a backlight on certain models that utilize under-screen fingerprint sensors they will no longer function as the sensor cannot pass through the screen like it would with an OLED screen.
eBay
Back Door Battery Cover Adhesive Sticker Glue Tape For OnePlus 6 6T 7 7T 7Pro 9 9r 9RT 8 Pro 1+8 Nord 8T Replacement Part
Aliexpress UK
Fits: A6010, A6013. Need it quicker?.
eBay
For Oneplus 6 6T 7 7T 8 8T 8 Pro Case Dual Card Fabric Cloth Luxury Business Cover For One plus 7 Pro 7T Pro Nord Funda Coque
Aliexpress UK