Get List of Entity Models in DbContext Entity Framework Core 2.1

You can use Model property to get the associated IModel, then GetEntityTypes method to enumerate all IEntityTypes. ClrType property of IEntityType will give you the associated class type, e.g.

DbContext db = ...;
var entityTypes = db.Model.GetEntityTypes().Select(t => t.ClrType).ToList();

IEntityType has many useful properties and (extension) methods for getting information about the primary/alternate keys, foreign keys, navigations, properties etc. in case you need them.