Assassin Anubis protects against Doom
Lamia marks that can damage Ferryman and can wear Singularity tals to protect passives and won't get sleepy
Soccer Ed sharded hits hard, can have Immunity tals to protect from sleep
Yin Yang ok also for him but can be slept
Warlord and Dominance talis feed each other nice healing and boosting damage buffs maybe for Anubis
Blocker choice would be Sentinel Guardian, basic move disables passive on Ferryman if you have him-not on your list, he could have Frontier or Eternity if you are going to buy
Green Bat is on your list, would be good to keep others alive long enough to win