In an election where it is likely there is to be a landslide, it is important to vote for combinations in the upper house that can act as a check on government.
In the upper house this election, there are 3 viable choices, the John Hatton Group (Group C), Save Our State (Group E) and the Australian Democrats (Group L).
In the case of the Australian Democrats, Arthur Chesterfield-Evans is back and is the lead candidate on the ticket.
Note that in state elections, you can use preferences (number 1, 2, 3 and so on) above the line, so you can put these three in whatever order you want.