ideally i'd go with megatron, garcon, and blackmon.
the reasoning for megatron needs no explanation. garcon is one of those WRs whose production genuinely surprises me...he's been money thus far (a low of 6.90 and everything else either 8/12/20) and you know this game with dallas is gonna be up in the 30s going back and forth, so i'd want a piece of that.
then justin blackmon has been a very solid fantasy guy lately. down the stretch last year he getting ~50-100yds/week with regularity, accruing ~3-4 TD over those last 5-6 weeks. he came back from suspension this year and went out and got 136 and a TD in his debut. the guy was the #5 pick in the draft either last year or the year b4, so when you've got a team who's going to play itself into positions of needing to chuck it all over the field combined with the fact that this dude has a #5 pick pedigree, it was an awfully shrewd to stash blackmon on your team a few weeks ago, as the ~20pt debut last week should have gotten the guy on somebody's roster by the time the this week's waiver claims hit. i think he's going to be a very solid WR3 going forward, heck he might even be a very solid WR2 with the legitimate upside to be a WR1, and given his pricetag that means that you've likely already got a proper WR1/2 so that means you'd be in a good position to roll forwards with blackmon.
so yes indeedy i babble graffiti, go with megatron/garcon/blackmon. if megatron's out then plug in josh gordon, who i personally think is due for a dud, if not just a menial ~60-70yd game sans touchdown.
take a look @ my thread, would ye?! viewtopic.php?f=19&t=541620