Fenders for Roadlite 5

Hey,

We got a new bike, a Roadlite Onfly 5 and now I try to figure out, which fenders would fit.

This is the bike:

https://www.canyon.com/de-de/e-bikes/city-e-bikes/roadlite-on/roadlite-on-al/roadlite-onfly-5/3909.html?dwvar_3909_pv_rahmenfarbe=BK

Tires are 27,5×1,5, frame is size S.

The original fenders by Canyon are not available (and cost 70€).

So what are the alternatives?