public static IEnumerable<TResult> GroupJoin<T1, T2, T3, TKey, TResult>(
       this IEnumerable<T1> source1, IEnumerable<T2> source2, IEnumerable<T3> source3,
       Func<T1, TKey> key1Selector,
       Func<T2, TKey> key2Selector,
       Func<T3, TKey> key3Selector,
       Func<T1, IEnumerable<T2>, IEnumerable<T3>, TResult> resultSelector)
    {
        var lookup2 = source2.ToLookup(item => key2Selector(item));
        var lookup3 = source3.ToLookup(item => key3Selector(item));
        foreach (var item1 in source1)
        {
            TKey key1 = key1Selector(item1);
            IEnumerable<T2> items2 = lookup2[key1];
            IEnumerable<T3> items3 = lookup3[key1];
            TResult result = resultSelector(item1, items2, items3);
            yield return result;
        }
    }

public ICollection<ProductModel> GetAllProductsWithImagesSortByValue(List<int> values)
{
        return context.Product.GroupJoin(
            context.ProductValue,
            context.ImageObject.Include(x => x.Image),
            p => p.ProductId,
            pv => pv.ProductId,
            io => io.ProductId,
            (p, pv, io) => new ProductModel
            {
                ProductId = p.ProductId,
                Name = p.Name,
                Price = p.Price,
                ProductValue = pv
                    .Select(npv => new ProductValueModel
                    {
                        ValueId = npv.ValueId,
                    })
                    .ToList(),
                ImageObject = io
                    .Select(nio => new ImageObjectModel
                    {
                        Image = nio.Image.DtoToModel(),
                        IsDefault = nio.IsDefault,
                        ProductId = nio.ProductId
                    })
                    .ToList(),
            })
            .ToCollection();
}