How to search/compare if phones have a metal or plastic body?

[AC Question]

How come sites like gsmarena and phonearena don't show if the body is made of metal, plastic, glass etc, and where would I go to get that information? It plays a role in choosing a new phone, or considering upgrades, but I can't seem to find any good way to get that information. The only way I know is watching detailed reviews on YouTube.