I like to pop a sugar free worthers oringinal when i get my sweet tooth. Also i accidentally found a really good desert. Take 2 scoops chocolate flavored whey protein powder, 1/4 cup heavy whipping cream, and water to taste. Mix then freeze in a popsicle container. May need to adjust measurements for your taste, but it tastes like a fudge pop.

There are lots of sugar-free candies that should work on keto.

There are also keto friendly chocolates - most dark chocolate is relatively low carb assuming you aren't eating a ton of it.

Also consider some herbal teas like the fruit teas or licorice as they can give you that sweet flavor without any actual sugar - just pay attention to labels as some teas do have sugar and you want to avoid those.

Lots of great suggestions here already. My g onto lately has been 1 square of lindt 90% dark chocolate and abought 15g of pecans with a bit of salt. It's so good. I also really like making sugar free jello. All you need is gelatin and some sugar free water flavouring. So easy, low calorie too. You can make a couple portions and they keep in the fridge well. I've also added collagen to my jello to help add some protein.