What I mean by resource distribution is the placement of items in the game. More specifically "minable" items in builder/resource gathering games like Factorio, Oxygen not included or/and RimWorld.
The games all place clumps of the same items around each other. For example in Factorio there will be fields of resources like coal, iron, copper, etc. which will spawn together in little clusters rather than there being single resource tiles being sprinkled around the map. See screenshot:
This is a similar behaviour in Oxygen not included, similar resources are more likely to be next to each other but depending on the rarity they can also be found alone as a single block. In the game there are also zones which denote what resources can spawn which appear to be preset locations and shapes as they are the same each game (with the types mixed up), but resources themselves are position procedurally. I grabbed a screenshot online and highlighted some of the resource types to make the distribution more obvious.
The ideal answer will show what methods would work well to reproduce "clustered resource distribution", with advantages and disadvantages of a given method. It will not necessarily have code examples but rather the rough steps/pseudocode that would have to be taken.