The important ranks that are open for each Clan is posted here.
SunClan
Leader- Goldenfur
Deputy- Open
Medicine Cat- Open
MoonClan
Leader- Nightstar
Deputy- Open
Medicine Cat- Wavepelt
CloudClan
Leader- Open
Deputy- Mistfang
Medicine Cat- Open
SkyClan
Leader- Rosestar
Deputy- Open
Medicine Cat- Open
LilyClan
Leader- Open
Deputy-Open
Medicine Cat- Rainfrost