I tend to agree, on the rebranded parts, but there are some that actually do more thorough testing of the their suspension/chassis components they sell. One company that I've checked out is Partsw.com and they are similar to Detroit Axle (rebranded), but they actually use them on their vehicles and seem to provide real world testing and they also seem to back their products. Replacing the worn bushings and ball joints on the LCAs would be a cheaper and better method when using OEM parts, but with labor costs being a little crazy sometimes, you can get a complete pair of LCAs for just the labor to do one ball joint replacement. For loaded struts/springs I went with KYB brand's Strut-Plus as they are an OEM manufacturer.
If you're having a woble/shaking at specific speeds, you might have an out of balance tire(s) and or worn steering/suspension parts. If you aren't able to inspect this yourself, I would go to a reputable shop that does wheel alignment as well as tires/brakes and ask them to do an inspection, some places will do it for free, but need to call around first or get a recommendation from someone.