Just looking at the reasons for this development: HB has Friends which save an influence (not a big deal), more importantly they have Clone Suffrage which recurs Friends, Estelle Moon was built for asset spam, they have some other utility tools that help (Shipment from Mirrormorph, Encryption Protocol). Then, on top of all that, you get the benefits of being HB: a great identity in ETF, 6 3/2 agendas, excellent ICE.
I don't think beating HB asset spam differs greatly from every other faction. Be Whizzard and/or be rich, use tools like Slums & Scrubber. Maw and Hacktivist Meeting have some applications here, too.