HBD is already an algorithmic stablecoin (arguably one of the first, but the original algorithm had a weakness: no peg on the high side).
But after the changes in the last hardfork, it has the best algorithm of any of the algorithmic stablecoins I've reviewed. I'm very happy with its performance since the hardfork and I think the new economics associated with it have been very beneficial to the entire Hive ecosystem.
Edit: note this is Dan from "blocktrades", but I'm responding from my personal account on Hive.
RE: 22nd update of 2021 on BlockTrades work on Hive software