nothing i’m using so far is too smelly, the pla is meant to be ‘food safe’ once cooled, eg you could make cookie cutters etc from it.
you’d want extraction for something like abs which is both hotter and smellier.
check out
https://www.tukkari.com/ for enclosures with filtration
i only have a single extruder printer, so the support is the same material as the part in each case. it basically tears off with a little help from a blade as it is very lightly attached.