I ate fruit every day on keto originally as it was impossible for me not too. I couldn’t handle it without fruit back then. But a little was enough especially in the presence of enough raw vegetables.
I preferred raspberries and frozen banana
It’s very individual, I simply loved these a lot and both were great to scratch the itch using almost no carbs… (I had maybe 3g net carbs a day for fruits, it varied a bit but it was the normal I think, I needed a lot for vegetables, nuts and other stuff, presence of fruits were important but the amount wasn’t.)
I never really miss it on my carnivore days, I just know it’s very, very, very enjoyable. Lack of plant carbs does wonders to me but I was very experienced with keto and even more with low-carb at that point.
Sometimes I drink fruit juice (I have blackberry now, from canned blackberries. of course without extra sweetening added, it’s fruit, it’s sweet already. it has no added water either) with carbonated water, that must be super low-carb as fruit juice is extremely sugary for me so I use a very little amount. But it takes time to reach that too I suppose…? I don’t remember, my sweet perception changed very quickly after cutting out added sugar and it happened to my high-carber SO too despite he eats sweets 20 times a week, fruits every day, just not added sugar. Interesting.
It’s a rarity and I need fruits canned by myself for it (and quince produce close to no juice, for example. berries are the best, they has lots of water) but it’s very nice.
Carrot is very sugary too, I would rather use my fruit juice thing.
Oh and lemon is a nice fruit too and it’s so intense a little goes a long way… I personally love lemon, it’s not like biting into a crunchy fruit, of course, it’s not good for that desire just like my drink isn’t. I enjoy crunch, fruit flavor and juiciness alike. Some vegetables help a lot with 2 of these and while they don’t have fruit flavor, they may have their own veggie flavor. Like a crunchy, juicy, tasty slice of daikon, that is amazing. Not fruit but as I wrote, I don’t really need fruit anyway anymore. (And even my rebellious inner self is happy, the same that wanted banana with chocolate every day as daikon isn’t carnivore
And my actual goal is being close to that. Not using vegetables without a very good reason. But some crunchy juicy stuff here and there is nice and they are a bit similar to fruits in that.)
If I just wanted sweetness, I could have beetroot juice. Even pickled eggs using beetroot juice and lots of vinegar, I love that stuff (well the vinegar works against the sweetness, I actually dislike that in my non-dessert type food. but I still love the taste of beetroot. nothing like a fruit but nice and sweet, a bit too much sometimes but vinegar and salt helps).
But frozen banana is my ultimate very sweet fruit. I had to use unsweetened chocolate to bring down the too much sweetness after some time. Of course I only ate a slice or two but it was enough for me.
But there was a reason I had my other big option, raspberries… Very low-carb and I wasn’t the type to eat it galore. A few was fine. But I actually could fit more, sometimes raspberry was my “jam” in my cake. But I typically ate fruit all alone.
But almost any fruit is fine on keto (well on some people’s keto, we all have our own blacklists I guess). Theoretically any fruit but I couldn’t do it with certain ones. I needed to choose the ones where I could eat a little enough amount. It covered most fruits as I am that type but one can learn. But it takes a very, very good apple to make it worth (and possible) for me to eat 10-20g of it… Okay, a tad more may fit 
Bread actually can be replaced for many of us, fruit is fruit, nothing resembles them. (Not like any keto bread could be similar to normal breads if you ask me but I don’t want that anyway.)
I don’t know if it helped any as these things are pretty individual. Some people don’t even handle well keeping sweet things, it seems… I am not sure about myself, life seems to be easier when I manage not to eat sweet things but sometimes they are needed for reasons…
You should figure out what works best for you. And you easily may change later.