is there anyway I can find out what EVs every single pokemon rewards when they are defeated? Everywhere I look is just a few pokemon.

The Psydex tells the EV award for every one. Depending on your needs, that may be too much work. I was considering compiling a master D/P list a few months ago, but life interferes.

oh wow thanks. i looked here under EV and hadn't thought of checking as effort value. hmm a list would be a full good idea. I just started my d/p game recently though and want the correct pokemon to fight my opponent along the way so it's beneficial. so the dex is uses there to search them.