Here's a list of Oppo's 8GB RAM phones that will cost you Rs. 20,000 or less
OPPO Reno Z price, specs and reviews 8GB/128GB - Giztop
OPPO Reno 7 8GB+128GB Black
Oppo Reno6 5G 6.43" 90Hz 128GB 8GB RAM 64MP Global Version Phone By FedEx | eBay
Original Oppo Reno 5 Pro 5G Mobile Phone 8GB RAM 128GB ROM MTK Dimensity 1000+ Octa Core 64.0MP AI NFC Android 6.55" OLED Full Screen Fingerprint ID Face Smart Cell Phone
Oppo Reno 4 128GB 8GB RAM (Factory Unlocked) 6.43" 48.0MP Black , Blue | eBay
OPPO RENO 8 5G 8GB RAM + 256GB ROM – MPS Trading
OPPO A52 8GB RAM Best Price, Full Specs - wiki91 | 8gb, Samsung galaxy phone, Phone
OPPO Reno 7 8GB+128GB Gold
OPPO Reno7 Dual-SIM 128GB ROM + 8GB RAM (GSM Only | No CDMA) Factory Unlocked 4G/LTE Smartphone (Sunset Orange) - International Version
OPPO A96 8GB RAM Qualcomm 695 5G Smart Phone 6.43 inch OLED Screen 48MP Main Camera 4500mAH Battery 33W Fast Charge Phone OTG|Cellphones| - AliExpress
Amazon.com: OPPO A95 4G Dual 128GB 8GB RAM Factory Unlocked (GSM Only | No CDMA - not Compatible with Verizon/Sprint) International Version | Bundle w/Fast Car Charger - Glowing Rainbow Silver :
Oppo A52 8GB RAM Variant Launched in India as a Part of Amazon Prime Day 2020 Sale | Technology News
OPPO Reno5 Z 5G Dual CPH2211 128GB 8GB RAM Factory Unlocked (GSM Only | No CDMA - not Compatible with Verizon/Sprint) International Version - Cosmo Blue