facilitator
facilitator
noun
/fəˈsɪlɪteɪtə(r)/
1 ​a person who helps somebody do something more easily by discussing problems, giving advice, etc. rather than telling them what to do
The teacher acts as a facilitator of learning.
A Web-based facilitator will provide feedback on your assignments.
2 ​(formal) a thing that helps a process take place
e.g.
/13sardialouge/No. 044 1985 Nostalgia 1985ノスタルジー#5ffed421bdb0e50000de4693