NAPA Perfect Fit $17 each.
Trico Perfect Fit $10 each at Walmart.
OEM ACDelco for my Buick are just Trico Perfect Fit with ACDelco name on it.
They're natural rubber blades, but someone at a Buick Forum told me that I can spray Silicone spray lube on them to create silicone coated blades. Supposedly the coating will last at least a month (then respray).
Ya, I hear you. Spraying silicone lubricant on wiper blades sounds sketchy. It seems like it might create a smeary mess.
Since I posted that, I've picked up some more (and likely better) advice and figured out something too.
Someone told me that thoroughly cleaning windshield with Sprayway window cleaner and
white paper towels, then claybaring windshield with windshield cleaner and a clay bar, then washing it off with water, then after it dries, another wash and wipe with window cleaner and paper towels.
Then treat/coat windshield with RainX, or wax (car wax) and buff windshield.
Then install new wipers, or new blade refills, unless your broke. If you're broke, then wash existing wiper blades thoroughly using Sprayway window cleaner and clean white wash cloth(s). Once wipers seem clean, give them a few extra final wipes with a white paper towel.
The final/extra wipes from paper towel is to remove any oily residues from laundry soap scents, fabric softener, or dryer sheet that could have been on wash cloth.
The above will result in no smearing or streaking from wipers. Also makes chattering less likely.
Also use Sprayway and white paper towels to clean inside of windshield and other windows. Windows that are clean on the inside don't fog up. Sprayway is ammonia free and won't damage plastic or vinyl. So overspray won't harm your dash or inside of doors.