How to make a car less bouncy?

My 2016 Camry feels very "bouncy" even on seemingly smooth roads. It is bouncy at every speed, from 30km/h to 110km/h. I can feel every groove on the road. Which components should I modify/replace to achieve a more comfortable ride? I know that shock absorbers prevent the car from bouncing. So I have replaced the front shocks, but most of the bounce is still there. I am now considering my options:

• Replace rear shocks
• Replace springs
• Perform wheel balancing. I’ve already done wheel alignment and rotation.
• Get better tyres

What is the best option for me and is there anything else I should be thinking about? Is my car just "bouncy" by design and there is nothing I can do about it, other than getting a new car?