Today, I looked at the wiki on this (http://elementscommunity.org/wiki/Elemental_synergies) site.
And I couldn't but to notice that the list is quite incomplete. E.g. :aether states that it's only synergy is with :life (frogtal) although Minor Phoenix is also a well known and possible variation with fractal.
So for :aether
:aether :darkness has good synergy with fractal/devourer combo. Also I think that voodoo + TU should be mentioned though that requires more elements than those two.
:aether :death again fractal with virus and or spiders. Lightnings + Bone Wall or Bone yards. Condor + Fractal + Sparks is also a cool one.
:aether :earth not much comes to mind here... again fractal with gemfinders and either antlions or steel golems.
:aether :entropy lightning + maxwell. spark + CP + TU. Fractal + Micro. TU + Improved Mutations + Spark.
:aether :fire fractal + Minor phoenix. TU + Lava Golem.
:aether :gravity fractal + charger or graviton guards. TU + overdriven armagios or guards. quinted otyugh + charger. Lightning + gravity shield. Phase Recluse + Unstoppable and TU.
:aether :light RoL/Hope. Deckout with phase shield stall + sanctuary and miracles. Maybe TU + Crusader.
:aether :time scarab tale. something with anubis.
:aether :water something with mind flyer...
I might edit this post if I feel like it and have some spare time... but I think it would help the people who are responsible for the wiki if others would post here their own suggestions for the other elements and additions for the ones already made :)