In the Calais Jungle, I saw refugee organizations received all kinds of useless things like bikinis, Halloween costumes, etc
Sometimes the best thing is to donate money. Organizations can use economies of scale to buy more things and modify what they get to real time needs
In case it needs to be said physical collections for refugees, asylum seekers or homeless people are not where you dump the crap you cleared out of your home. Having sorted donations before the amount of old underwear and damaged clothes, often unwashed, received was shocking