I recently bought two of these because narrow
https://a.aliexpress.com/_EwYhx7o
Haven't ridden them, but friends didn't complain 
I have had the Unno alloy bar on my commuter for over 1 year, and they're flawless, and nice in the 36 option. Only thing I didn't like was the bar is only 25.8 in the round areas so a bit small, but thick bar tape can fix that.
I've swapped it for Toseek T30 in 36 width carbon bar, which was a bad idea, the clamping area on the bar doesn't go high enough for the Sensah HRD shifters to be mounted correctly. I'm probably going to switch back to the unno bar.