I glued a couple of hooks to my shower tiles to hold my scrub brush and a bath sponge, but the hooks fell off a few weeks later. (I followed the directions of a 24 hour wait before using the shower.)
Contact cement? You could just use a masonry bit on low speed and drill through it, then set an anchor and mount your hooks. I’ve done it many times. Unless it’s glass tiles, of course.
On the other hand, suction cups might be your answer. We have several suction cup, er… thingies attached to our tile. They almost never fall off and if they do (unlike glued-on hooks that never work again) you can just re-attach them.
Check someplace like Bed, Bath, and Beyond. They should have a wide assortment.
My dad uses the sort of glue that you use on fish tanks to glue on the little bar soap holder in his bathroom. Granted, it’s not inside a shower but it’s glued to tile in a wet place.