Maybe Foreign Policy? Can't say I've read any issues in the past few years, but back when I last read it, it appeared to fit your requisites reasonably well (perhaps a bit too US-centric for your liking).
This chart shows FP as a more factual, slightly closer to the Center than The Economist (EDIT: Wrong)
EDIT: I misunderstood the chart. It shows FP as more factual and slightly more opinionated than The Economist, while labelling both as "Center" (without relative comparisons) ideologically.
> slightly closer to the Center than The Economist.
The center of US political debate is significantly to the right of Europe on a large set of topics (from the role of the State in economic matters to global issues like Israel's behaviour).
This chart shows FP as a more factual, slightly closer to the Center than The Economist (EDIT: Wrong)
https://www.datawrapper.de/_/rrzFK/
Source for the chart: https://www.thefactual.com/blog/is-foreign-policy-magazine-r...
EDIT: I misunderstood the chart. It shows FP as more factual and slightly more opinionated than The Economist, while labelling both as "Center" (without relative comparisons) ideologically.