Fushun was taken as well. Type 056. 591 is its number now.Would be interesting to know what 108's name would be. The number of names might be running out. My two bets:
Zhuhai. This is after the retirement of Type 051 no. 166 Zhuhai. So that name is now available, although it does have the potential of ending up with a 052D new batch.
Fushun. China's first four destroyers based on ex-Soviet Gnevny class were Anshan, Fushun, Changchun and Taiyuan. So three are taken, which leaves you with Fushun.