I have been reading about the Bentley's Paradox the other day and I had an idea where Gravitons should have charge.
With Issac Newton's equation of gravitational attraction $$F=\frac{GMm}{r^2}$$
We theoretically can show that all 'stuff' in the universe should be attracted to each other, however it is not the case. The universe does not collapse into one giant black hole. Since this relates to gravity, this should relate to the unproved particle: Gravitons.
However, when I search up in Wiki, or on this Why doesn't gravity have charges?Why doesn't gravity have charges? question, it doesn't really answer my question exactly. They all show that gravitons have 0 charge. However, if gravitons do not repel each other, how can the universe maintain the state where nothing collapse into one giant black hole?