Ok, so Cloud x Tifa is canon, but now that they're remaking, I think they should mix things up, so here are my vastly superior hook up proposals
Cloud x Zack
Aerith x Tifa
Barrett x Everyone
Yuffie x Materia
Genesis x a copy of Loveless
Cloud x Zack
Aerith x Tifa
Barrett x Everyone
Yuffie x Materia
Genesis x a copy of Loveless