Everyone has long known such a cheat as X-Ray, because with its help you can find resources hidden underground. But using such a cheat can easily lead to a ban on the server. The solution will be transparent textures for Minecraft that will make all blocks transparent except for ore.
Transparent textures for Minecraft 1.16.3 / 1.16.2 / 1.15.2 / 1.14.4
Using these textures, you can find the resources you need extremely easily. Each block of ore will be labeled with its own letter, so for example iron will be signed with the letter I. This is an extremely useful life hack that allows you to quickly develop on any server and collect all the ore blocks you need quickly.