I need to purchase a couple sets of new wheels for my car but nowadays there are SO MANY choices I'm totally confused.

I run 225/45/15s so I need 15x7 rims. I would like to find eight (8) wheels that are reasonably light and cost-effective (if possible).

What are the best and/or most popular choices in IT? I believe my current ACR wheels are about 16.5 lbs so I would like to go with 10-14 lb range wheels. Any opinions on how much difference the few less lbs makes?

Just looking for general opinion and experiences form others as to what have ended being the best choices.