The National Council of State Legislatures issued a report on 1,106 bills which have been filed in state legislatures to deal with illegal immigrants. Of the 44 states considering at least one bill, 26 have enacted at least one.
The leading topics are employment (sanctions against employers who hire illegal workers, and other provisions); driver’s licenses (tightening their distribution); and law enforcement (some calling for coordination with ICE). Other topics include education and healthcare.
Go here for a copy of the report.