CreateTableFromEntity.cs

public static string GetCreateTableQuery<T>(IEnumerable<T> list, string tableName)
{
    Type type = typeof(T);
    var properties = type.GetProperties();
    var query = new StringBuilder();

    query.Append($"CREATE TABLE {tableName} (");

    foreach (PropertyInfo info in properties)
    {
        query.Append($"{info.Name} nvarchar(max),");
    }
    query.Append(");");

    return query.ToString();
}