Many different types of organisms reproduce through spore formation, including:
Fungi: Many types of fungi, such as mushrooms and mold, reproduce through the production of spores.
Algae: Many types of algae reproduce through the formation of spores.
Bryophytes: mosses, hornworts, and liverworts reproduce via spores.
Ferns: Ferns reproduce via spores.
Some bacteria: Some types of bacteria, such as Bacillus and Clostridium, reproduce through the formation of spores.
Note that spore formation is one way of reproducing, but not all organism that can form spores reproduce only via spores. Some may have other ways of reproducing as well.