Suspension Techniques were the set you could have from JC whittney, back in the day, It was a pretty good deal then. They since sold the company and it is assumed that Spring Tech, found on ebay are the new manufacturer for them, if they are made to the same Spec then you should be be good. I used to run them and for a stock or illumina shock they work fine. They are Linear.
H&R and Eibachs go well with Manual Adjustable shocks.
Then you have Vougtland springs that seem to be the new craze. One one style is Stocked at SCP.
I run Intrax springs and those can be found from Summit racing. They are one of the stiff springs out there. They are variable but still manage to be harsher then the suspension Tech I had.. My car has less weight now maybe that has something to do with the comfort. But still these are great for performance.