The hardest part of doing a Keto friendly Fondue is chocolate. I found this recipe and it is awesome. Couldn’t tell that it was much lower in bad sugar than most chocolate. For dippers I suggest raspberries, blueberries, bananas (limit if on Keto), Brownies (Keto or not), and Keto friendly marshmellows.
As I have focused more on Keto recipes. I have remade on of my others recipes. Traditional peppers are stuffed with lots of tomato sauce and rice. By removing the rice, I also found I had to lighten the dish by moving from beef to ground Turkey.