I like tartar sauce on salt water fish but prefer my freshwater fish plainer. Are Wickles pickles available where you live? I finely chop 6-8 slices and add it to a hefty dollop of Hellmans (or Best Foods out west) mayo and add 2-3 teaspoons of the pickle brine itself and stir it up; usually about an hour before use. Wickles are sweet and spicy and to my way of thinking make a very nice dressing.
I know you asked for a brand to purchase but its been years since I used store bought.
Yes, I was talking to myself; sometimes even I have to ask for expert advice.