I'm going to try my best to explain how tough the last two months have been 
I have two kittens both four months old and trying to figure out what wet food to buy/what they will actually eat has been a NIGHTMARE! When I got them from the shelter, they made no mention of any issues with eating, wet or dry (though they mentioned they only got pate). The first food I tried with them was Whole-hearted with shreds and gravy because it was grain free and seemed like a good brand, but one of my kittens had a terrible reaction to it and is now still on probiotics. So I had a friend recommend Wellness complete health, and for the last month and a half that's what I've been trying (and somewhat failing) to feed them. They get wet every six hours and dry all the time, but as of the last month or so, I can barely get sometimes both of my kittens to even eat it! At first, I started mixing dry and wet and I had no glaring issues but they really wouldn't eat more than a half can at a time. They also tended to lick the wet out of the dry, so eventually, I just stopped putting the dry in it to save some food. They still get dry food all the time. Doing only wet also worked for a bit, still, barely a half can each, but then I noticed they stopped eating the chicken pretty much altogether. They would sniff it, maybe lick it a few times, and then scratch the floor to cover it. So then I tried just the whitefish and tuna flavor, and they devoured it! Not a single meal did they not finish the fish.
Despite all this, I want them to have a variety of flavors to choose from so I randomly searched 'why are my cats only eating fish-flavored wet food' and my goodness did the search results freak me out! I had no idea that fish was addictive and could really harm my kittens. I've tried to stop the fish, and right now I'm just mixing it in a tiny bit with the chicken hoping the smell will carry enough so they eat the chicken, but so far no luck with that and they are still reluctant to eat it. It's a constant struggle every meal time with me on the floor either trying to get them to eat it off a spoon, putting treats on top (though they just lick it off and don't eat the food), or simply just giving up and sometimes they circle back to eat more an hour or two later.
I could really just use some advice. My only guess is they are bored with the chicken, which I understand if that's all they're getting every meal (Wellness has no kitten variety which sucks), but I'm reluctant to feed the fish now that I know it's not great. I don't know much about wet food brands because I just jumped to Wellness right out the gate, but I do know Friskies and Fancy Feast are like junk food cat foods, so if I can avoid those and those with heavily fishy ingredients I would like to. I'm also not super stacked so I can't really afford any super pricey goods either. I'm probably asking for a lot right now, but with all the food issues I'm exhausted and I just want my darn kittens to eat! This on top of the recent discovery that they have FIV has been really weighing me down. Anything helps!

I have two kittens both four months old and trying to figure out what wet food to buy/what they will actually eat has been a NIGHTMARE! When I got them from the shelter, they made no mention of any issues with eating, wet or dry (though they mentioned they only got pate). The first food I tried with them was Whole-hearted with shreds and gravy because it was grain free and seemed like a good brand, but one of my kittens had a terrible reaction to it and is now still on probiotics. So I had a friend recommend Wellness complete health, and for the last month and a half that's what I've been trying (and somewhat failing) to feed them. They get wet every six hours and dry all the time, but as of the last month or so, I can barely get sometimes both of my kittens to even eat it! At first, I started mixing dry and wet and I had no glaring issues but they really wouldn't eat more than a half can at a time. They also tended to lick the wet out of the dry, so eventually, I just stopped putting the dry in it to save some food. They still get dry food all the time. Doing only wet also worked for a bit, still, barely a half can each, but then I noticed they stopped eating the chicken pretty much altogether. They would sniff it, maybe lick it a few times, and then scratch the floor to cover it. So then I tried just the whitefish and tuna flavor, and they devoured it! Not a single meal did they not finish the fish.
Despite all this, I want them to have a variety of flavors to choose from so I randomly searched 'why are my cats only eating fish-flavored wet food' and my goodness did the search results freak me out! I had no idea that fish was addictive and could really harm my kittens. I've tried to stop the fish, and right now I'm just mixing it in a tiny bit with the chicken hoping the smell will carry enough so they eat the chicken, but so far no luck with that and they are still reluctant to eat it. It's a constant struggle every meal time with me on the floor either trying to get them to eat it off a spoon, putting treats on top (though they just lick it off and don't eat the food), or simply just giving up and sometimes they circle back to eat more an hour or two later.
I could really just use some advice. My only guess is they are bored with the chicken, which I understand if that's all they're getting every meal (Wellness has no kitten variety which sucks), but I'm reluctant to feed the fish now that I know it's not great. I don't know much about wet food brands because I just jumped to Wellness right out the gate, but I do know Friskies and Fancy Feast are like junk food cat foods, so if I can avoid those and those with heavily fishy ingredients I would like to. I'm also not super stacked so I can't really afford any super pricey goods either. I'm probably asking for a lot right now, but with all the food issues I'm exhausted and I just want my darn kittens to eat! This on top of the recent discovery that they have FIV has been really weighing me down. Anything helps!