Not many fish I cook smell although I do try and avoid frying them which seems to be the smelliest way. For instance fried kippers are well known for filling the house with a lingering aroma....it used to upset the wife when I made them in the UK. I did read cooking them by sinking them in boiling water for a few minutes prevented them smelling but never tried it.

I now mainly poach fish or make fish pie and haven't heard her complaining.