Recommendations of recruiters or headhunters

Hi there,

I'm looking to change jobs so I can negotiate a work remote situation. Does anyone have recommendations of recruiters/headhunters they have used before or friends have used? They could be located in Canada or the US but the list of companies I would like them to target for me will be in the US.

I hoping to get some recommendations here as I've heard of some bad recruiters as well.

Many thanks in advance,
WT