The award redemption services generally are not travel agents.

On FT, there are threads listing Virtuoso agents who participate in FT (luxury hotels forum, IIRC) and award redemption services with FT connections (external miles and points forum). You might wish to consider whether any of these outfits seem to specialize in either the type of travel you wish to do (for example, some Virtuoso agents might have expertise in safari trips, or particular regions, or travel with children) or, especially for the award search services, the airline/alliance you prefer.