I am still looking to improve my Rakdos Aggro deck, even dwelling to the option of having a third color in the build. Going for that mindset, I am planning to convert the deck to a Jund version and we are starting with a Google search for a reference list. MTG Top 8 usually provides and the one deck they got for this archetype is the one that finished in the Top 8 of a MTGO Competitive Standard League last January 24th. Here below is the deck list:

Maindeck
25 LANDS
4 Blood Crypt
1 Cinder Barrens
4 Dragonskull Summit
7 Mountain
1 Rakdos Guildgate
4 Rootbound Crag
4 Stomping Ground

22 CREATURES
2 Captain Lannery Storm
4 Goblin Chainwhirler
4 Rekindling Phoenix
4 Rix Maadi Reveler
4 Runaway Steam-Kin
4 Skarrgan Hellkite

13 INSTANTS and SORC.
1 Carnival / Carnage
3 Find / Finality
4 Lava Coil
2 Shock
3 Status / Statue

SIDEBOARD
1 Angrath, the Flame-Chained
4 Duress
3 Legion Warboss
1 Shivan Fire
1 Swamp
2 The Eldest Reborn
3 Treasure Map

Source: http://mtgtop8.com/event?e=21010&d=339391&f=ST