I had to train myself to like fish, but tinned pink salmon is quite the most disgusting thing I have ever tried to eat. Quality is everything for me when it comes to fresh fish. I can taste the texture difference when it is frozen - I made a fish pie for my husband and of the three kinds of fish one was frozen. It was very much less nice.
I can eat white fish - but I only like it breadcrumbed or battered. I've had the most beautiful skate cooked for me and hated it. It has to be very, very fresh - I loved bream in Turkey but hated it from supermarkets. I bough posh cod to make homemade fish fingers like flipping Katy in "I can cook" for my four year old. We both detested it but my husband yummed it up. It is so personal. Sauces are required for white fish for me. Tomatoe ketchup upwards!
The magic for me is smoking. If it's smoked, I'll eat it. All the fish, white or oily, down to eel. Can't stand eel until it turns up smoked on my sushi.
Trout and salmon are my go to fish. You can cook fillets very simply in the oven. If I have a big fish I sometimes mix the cooked flesh with mashed potato to make fishcakes.
I say about quality because some smoked salmon now is disgusting. Farmed salmon is the fish version of battery chicken. It used to be a treat, now it's low nutrient meat trading off a reputation from 50+ years ago. Smoked trout is more reliable. Smoked mackerel is usually good. If on my own I will warm up half the fillets in the oven to eat with new potatoes, and then blitz the rest with horseradish and cream cheese for a pate. And chilli goes really well with oily fish. Sweet chilli fishcakes for example.
If you know a fly fisherman they will quite often let you have their catch for what it costs them. I get amazing trout from a friend.
Fillets and a bottle of sauce you like would be my starting point.