Move Entity Framework entities configurations to separate class per Db

Question

I use code-first approach and have used SQL Server as database. All the entities are configured like below:

public interface IBaseEntityTypeConfiguration<T>
{
    public void Map(EntityTypeBuilder<T> builder);
}

// My entity
public class Student : IBaseEntityTypeConfiguration<Student>
{
    public Id { get; set; }
    public string Name { get; set; }

    public void Map(EntityTypeBuilder<Student> builder)
    {
         // Configure entity
    }
}

In the ApplicationDbContext all the classes which are inherited from IBaseEntityTypeConfiguration are added to the modelBuilder.Configurations.

But I came up with a new requirement. We should switch from SQL Server to PostgreSql!

I don't want to change the Map() method in all entities, but I want to add some kind of provider which says to modelBuilder that use configurations for SQL Server configurations or PostgreSql configs.

Something like below:

public class ApplicationContext : DbContext
{
    protected override void OnModelCreating(ModelBuilder modelBuilder) 
    {
        // var entities = new MsSqlEntityConfiguration().GetAllTypes();
        var entities = new PostgreEntityConfiguration().GetAllTypes();

        foreach(entity in entities)
            modelBuilder.Configuration.Add(entity);    // As an example
    }
}

Is there any solution that exists as described?