As mentioned before, you need to ensure the vehicle is flat towable or can be towed on a tow dolly.
If it can be flat towed you will need:
Tow bar....we recommend Roadmaster, but Blue-Ox is excellent as well, make sure the tow bar will cover the weight of your toad (I recommend going bigger as your never know if or when you may upgrade)
Baseplates mounted to your toad (vehicle you will be towing) it's best to match these up to the tow bar you will use. There are different baseplates for different vehicles, there is no "one size fits all"
Lighting kit, there are different choices....magnetic mount (don't have to be wired into your toad lighting system ) or the type that are wired in.
Braking system.....many many different choices and types
This will not be cheap
If you are mechanically inclinded, you can safe some money doing the DIY route.
If you flat tow, do not try to back your toad!
I know someone who tried and it didn't go well.
'Pa Pa's Palace'
2014 Sportscoach Crosscountry 405FK
2015 Jeep Grand Cherokee Overland