The best way to do this is to use a ratchet with a long extension and from underneath the vehicle remove one of the mounting bolts that hold the latch bracket. This will allow you to pull up the hood a few inches to get to the latch assembly and open the hood. I have had to do this myself and it worked.
With a pair of pliers pulling the latch.
go through the grill and use a heavy duty screwdriver to pry back the latch
The best way to to try to find the cable and cut it and pull with pliers to open if the inside latch is broken. If not then you would have to go in from underneath or through the grill.
How to open of my BMW 745LI Yr 2003 hood ,whose Hood latch is broken while tried to open the hood
i would probably use a screwdriver to nudge where the latch used to be to pop it open
Use a set of pliers to pull the cable even if the plastic latch is broken...
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how to get a 2001 isuzu trooper hood open if release cable is broken
I found this solution on the web somewhere and it worked. Have another person pull the latch release inside the car while you press down on the hood itself. It got my hood open. Good luck with this.
climb under there with a flashlight and a screwdriver and release the latch climb under there with a flashlight and a screwdriver and release the latch
If it is just the inside handle broken off you can pull the cable with a pair of pliers. If it is in the middle, you should be able to reach up from underneath and cut the cable and then pull the inside cable. If the latch end has pulled off, you may be able to trip the latch from underneath, or take the grill out and unbolt the latch.
Need more information. Is the latch behind the grill broken? Or is it the latch operated from inside the vehicle? If it's the latter you can remove the latch mechanism and pull on the cable using pliers or vise grips.