If you want something stiff, avoid anything with cutouts like the one you posted, or with aluminium 24mm axles. You can try Senicx PR3, or GR3 which is theoretically a version for gravel bikes, but I'm not sure if there is any difference between them. I installed PR3 on my friends gravel bike a year ago (she wanted some cheap but reliable 165mm crankset), made a few thousands km and no issues so far. You can find these in 1x or 2x configurations, or just the crank arms (they have 3 bolt GXP mount so there are plenty of chainrings and spiders to choose from), in lengths up from 165mm. It should fit your bike, if you already have a BB for Shimano cranks you don't need anything else.
