Camaraderie

ˌkäməˈrädərē,ˌkaməˈrädərē/
noun: camaraderie

mutual trust and friendship among people who spend a lot of time together.
"a genuine camaraderie on the hockey team"
synonyms: friendship, comradeship, fellowship, companionship, fraternity, conviviality; mutual support, team spirit, esprit de corps;
informal bromance
"he enjoyed the camaraderie of army life"