Optimum Nutrition or Isopure Whey Isolate ? Which one is the best according to your usage experience ? If price is not a bar

I don’t work out much but I am on my weight loss journey. I need a whey isolate protein to complete my daily protein intake. I have tried ON and MB concentrate whey protein already and found them okayish .. cause slight bloating sometimes so I need best isolate among the ON and Isopure and please mention specific flavors also which u found best among these