Assets and Images Filtering

Hey Guys,

Is there anyway to filter images and/or assets with tags or something similar? I’ve inherited a project with hundreds - maybe thousands - of brand illustrations, backgrounds and images, and am not able to rename them, so was wondering if there would be a better way to sort through them.

For instance:
I have an illustration of an Earth, some are small, some are large, some are realistic, illustrative, icons, blue, red, green, etc.

Is there anyway to give them all an ‘Earth’ tag, so even though they may be in different folders, they all pop up when I search for that tag?