Does Disneyland do pre-park-opening breakfast ADR’s? If so, which are the ones that will lead to the best ride access?

Only Plaza Inn, and not really PPO like WDW does. You can make a reservation for a time during EMH/magic morning on Tues, Thurs or Sat, so you can get in during that if you don’t qualify for EMH/magic morning. But otherwise there is no before park opens breakfast times.