Need recomendation router

any recommendation router support Openwrt ?
I want to use for online gaming, only use as client mode. I need MIMO router. maybe will be good if already dual-band. My Access Point is CISCO AIR-AP1832I-T-K9C
budget around 50-70$,
Currently, I'm using Xiaomi Mi Router Mini but, really unstable for 5.8/2.4, my TP-Link TL-WA701ND v2 still better than this
maybe you want ask " why not using cable for gaming ?" , i only using wifi since ISP only provide me Access Point and not giving me Acces for that AP, and block port Ethernet on ONT

sorry for bad English
Thank you before

Based on your budget, try and get the TP-Link Archer C7 V2 and run this build: [GCC 7.2 BUILD] Optimized TP-Link Archer C7 V2 AC1750 LEDE Firmware