This sentence doesn't sound quite right. It seems to need "nothing else OTHER than" added. Also correct would be: "He reads nothing else BUT magazines about politics."
Both (and more) OTHER THAN and BUT are accepted.
"He does not read anything else but magazines about politics" is not accepted.
Better would be: "He reads nothing other than magazines about politics."
That is accepted.
But "other" is not among the proffered words. This is (by far) the best English version of this sentence. The proffered words should never fail to include those necessary to provide this answer