Who Has a Chance of Beating Jon Jones at LHW or HW?

Who do you think can beat or has at least a small change of beating Jon Jones?
https://bit.ly/2X5CirS (only one man can beat Jon Jones)

DC, Ngannou at HW but, I think Thiago Santos is going to beat him in July.

I hope so but I doubt it

Jones is 6’ 4", and has yet to go up to heavy weight. Am I correct to guess he has a lighter bone structure than let’s Say Junior Dos Santos at the same height?

Why did he never fight Anderson Silva? He had a good record at LHW.