Leaker @momomo_us revealed a list of possible H670, B660, and H610 budget motherboards for the Alder Lake LGA 1700 platform from various vendors. The entry-level options here, like the Gigabyte H610I DDR4, could provide budget gamers a sub-US$100 entry point to Alder Lake in the months to come.
https://www.notebookcheck.net/Tipster-outs-a-raft-of-B660-H610-and-H670-budget-LGA-1700-boards-for-Alder-Lake-DDR4-H610-models-could-hit-a-sub-US-100-price-point.584837.0.html