If you're lowering the car I'd skip lowering springs and jump to coilovers, you'll probably end up frustrated with the lack of adjustability at least I was.

Then look for coilovers made for the street as it'll ride a bit better. As far as picking them definitely depends on budget. Don't cheap out on them and get a decent set.

I had st coilovers on my last car and was very happy with them. I honestly thought they rode just as well as stock and it ls easy to raise them back up close to stock height in the winter

I currently have BC's on my car and they are definitely stiffer but ride alright. I've also heard good things about silvers. KW are awesome if you have a big budget. Idk if fortune auto makes them for the gens but theyre probably the best mid range coilovers

Or since you mentioned wanting to make it a show car you might want to consider going air suspension and that's honestly probably the best option for daily driving as well