I personally prefer using flanger where you otherwise would have used chorus.
That said the Boss CE-1 Chorus Ensemble sounds gorgeous!
The Boss CE-2W got a CE-1 mode, there are a couple of higher end clones around of the original unit, or for budget the digital CE-1 model in the Zoom multi effects is actually pretty damn great, likewise goes for the Line 6 multi effects, also previous generation of Zoom and Line 6 multis, or you could try to find the discontinued Valeton Aquaflow Vintage Chorus, which is a budget analog clone, and the discontinued Voodoo Lab chorus is a CE-1 clone as well.
Nothing beats the CE-1 when it comes to chorus.