For utility lands, I highly recommend Otawara, Soaring City + Takenuma, Abandoned Mire for always useful utility, Shizo, Death's Storehouse to give Venser evasion, and Phyrexian Tower which can turn The Hollow into ramp
This card now sells for $1000+ on third-party marketplaces like Ebay
Finally, Stagecoach Security is a strong card as well and can be a go wide payoff
But it might be time for that to change in Historic thanks to the printing of Longtusk Stalker in Jumpstart: Historic Horizons , which solves one of the deck's biggest issues: the lack of a playable one-drop creature
But if you find yourself in a hand-based matchup, like a combo deck or a blue mirror, then Ego Drain seems like a big add for your Halo Forager package basically Faerie Fencing for non-creature decks