This is the device to which frollic is referring. It has nice hardware specs, including a 2.5Gbps WAN port.
It's $80 (USD) in the states on Amazon, but I noticed you are in Turkiye.
From searching, I did find this .tr listing. Though I am not familiar with the website / vendor "Ubuy", Talos shows the domain to have a favorable rating.
EDIT: I just did some searching of reviews of UBUY, and a common complaint is they supposedly have a lot of "hidden fees" when you order through them. Maybe look for a better vendor that ships to Turkiye.
Also, here is a link to the OpenWRT discussion thread for the device.
https://forum.openwrt.org/t/dynalink-dl-wrx36-askey-rt5010w-ipq8072a-technical-discussion/110454