I was forced into buying the Halfords one that carries three bikes (long story) and it’s actually ok. The foam covers and rubber straps perish too quickly for my liking but are replaceable. It straps to the back of the car easy enough and is secure. For £60 it’s been fine.
Be careful as lots of tailgate fitted racks do not really work on modern cars. If you have a plastic roof spoiler then it is v.hard to attach well. You need to ensure that the top straps do not contact the plastic as this will bend and allow the whole load to move, which is not good for spoiler, car, bikes or the traffic behind.