You got the below bunch of countries that have not yet signed up to CRS. You need to decide yourself if any are good banking countries for your needs...lol.
Algeria, Belarus, Benin, Bosnia and Herzegovina, Botswana, Burkina Faso, Cabo Verde, Cambodia, Cameroon, Chad, Congo (Republic of the), Côte d’Ivoire, Djibouti, Dominican Republic, Egypt, El Salvador, Eswatini, Gabon, Guatemala, Guinea, Guyana, Haiti, Honduras, Lesotho, Liberia, Madagascar, Mali, Mauritania, Mongolia, Namibia, Niger, North Macedonia, Palau, Papua New Guinea, Paraguay, Philippines, Senegal, Serbia, Tanzania, Togo, Uzbekistan, Viet Nam