Normally the Star Trek series is seen aboard a Starfleet ship, in which there are usually many humans and the aliens that are there are used to other species and trained not to have personal conflicts, but what cultural problems could there be between different aliens that have not yet been explored?

+ Vulcans and Betazoids: Vulcans act as if they have no emotions and never lie, but betazoids can sense emotions and can be brutally honest. Would they be considered hypocrites for detecting emotion? How would they get along? Both species have been shown to be able to have children with humans, could a Vulcan-Betazoid hybrid exist? What would it look like? Is there any law prohibiting hybridization between telepathic species? In other subreddits, I read that this possible hybrid would be in conflict between logic and emotions, but couldn't it just act like a human?

+ Ferengi and Orion: Both species are related to business and sexism. The Ferengi are traders or swindlers who discriminated against their women, while the Orions are pirates who enslaved their men. Have these species interacted in any way? What would an interaction between them look like? Would they manage to come to an agreement despite gender, or is conflict inevitable? In the event that two members of their species attempted a relationship, how would they deal with the clash of cultures?

What else can you think of?