Of course the Reverse Hyper, 45? hyper, and Glute-ham-gastroc raise are excellent, but they require machines.
Since you only have barbells and DBs, I would recommend stiff-leg deads with bar or DBs, Dumbell swings/snatches (swings are a great replacement for pull-throughs according to Louie Simmons).
Also Romanian deadlifts, Zercher squats, and maybe barbell hack squats (many Fins do this and they are notoriously good pullers). If you want an alternative to the GHG raise, weight your feet down and do "natural" glute-ham raises.