Someone else says lottery, but realistically it is probably going to be money. Socialist systems (transitory as they are) generally still use money to some extent, and people that have specialised necessary skills often do get paid more (e.g. in the USSR, professors and engineers got paid more than janitors and politicians, Blackshirts and Reds somewhere). They can use this extra money to buy beachside property or exotic imported goods or services. What they can't do with it is appropriate ownership of productive tools from the people actually using those tools (e.g. factories, phone banks etc).

I think beachside property is a good case study because it is desirable but will always be at least somewhat limited, especially as our view of the socialism we want becomes more green. People that hypothetically work near beaches would also have some priority (dockworkers, fishermen etc) depending on the region.

Obviously, there are socialist societies (real and imagined) that do away with money at the outset, but I think overall this answer has wound up being the best.