You may want to take a bit and serve it with some pasta.
Or pour it over some corn bread.
That way you are only eating a bit of the hot stuff.
Or can serve it on hot dogs.
One thing that would work, I believe, is adding cream or sour cream, but sour cream with chili seems like something I would probably not want to do.
But if I had a bit of sour cream in the fridge might add a spoonful or so to a bit of the chili just to see how it tasted.
And who knows, it might be OK over pasta. particularly if you added a bit more tomato sauce.
Otherwise, chili freezes well and you can always mix some with the next batch you make.
No more ideas, sorry.
Take care and God bless.