Need some suggestions on my suspension.

[Turbodan]

When I bought my car it came with 18" ROH rims on Sumitomo Tires. Also has the Eibach lowered springs and Tokico shocks. There is not much tire between the road and the rim. I hate how the car rides. It rides like a tank

What should I look into to changing first to get a better ride out of the car?

I am thinking the low profile rims and tires are causing the rough ride. What would you do first?

 

[BOOSTEDGNs]

the rims dont help any
check the suspension if there is poly bushings installed you might want to change out for rubber
check your shocks as well Ive noticed harsh ride on some diff shocks

Alan