they have all kinds of stuff that runs openwrt

like:

https://www.amazon.com/dp/B0978TF8K3/

https://openwrt.org/toh/zyxel/gs1900-24hp_a1

or:

https://www.amazon.com/dp/B08TC3VJ61

https://openwrt.org/toh/hwdata/zyxel/zyxel_xgs1250-12_b1