We have a bunch of these ceramic pots which often come as gifts when people give us plants.
No drainage holes. What use are they? They’re so small I think only succulents would be an option, but wouldn’t they just rot in water?
I like to drill holes in mine, it’s not always safe to do and you should run a bit of water where you intend to drill to stop the dust, but I’ve saved many pots that way
What kind of bit do you use to drill?
You should use a masonry bit, wear an N95 and safety glasses and spray water on it while you drill to mitigate dust.
For harder ceramics like these a diamand coated bit (they aren’t as expensive as the name makes the seem), always use water and drill through super slow so it doesn’t crack (a minute or longer). Good luck!!