domain-core alternatives and similar packages

Based on the "domain" category.
Alternatively, view domain-core alternatives based on common mentions on social networks and blogs.

• domain

  7.5 5.6 domain-core VS domain

  Focused domain model declaration toolkit for Haskell

• domain-optics

  2.0 0.8 domain-core VS domain-optics

  Integration of domain with optics

Do you think we are missing an alternative of domain-core or a related project?