So after matchday 4 here how the groups are laid out:
Group A - Arsenal and PSG are advancing, their match on the 23rd will likely decide who takes the top spot.
Group B - 3 way race between Napoli, Benfica and Besiktas. Kiev not technically eliminated, but basically are.
Group C - Barca will advance, if City can draw against Monchengladbach they're guaranteed to advance too.
Group D - Atleti and Bayern of moving on. Likely their matchday 6 game will decide who gets top seed with Atleti just needing a draw.
Group E - Monaco in the drivers seat but not locked yet. Bayer beating Spurs today moves them to 2nd, 2 points ahead. If Spurs don't win against Monaco on matchday 5, they're all but done.
Group F - Dortmund on top of the group, RM second. Likely their matchday 6 fixture will decide the top seed. Sporting still alive technically, but needs to beat RM in week 5 and then hope that RM loses to Dortmund in week 6.
Group G - Leicester didn't take the opportunity to basically lock up their top spot. Porto and Kopenhagen are alive, with Porto sitting 2 points up. They play on matchday 5 so a Porto win there will eliminate Kopenhagen.
Group H - Sevilla looking to break their Europa streak. Juventus doing their best to let Lyon get back into it but couldn't fail enough. Likely the Juventus/Sevilla match on gameday 5 will decide the top seed.