Arimax Lispat
Sarkh: Arimax feels that he can trust Sarkh, simply because he believes Sarkh to be simple-minded. He likes that, and may be friendly with Sarkh, at least when not in tense situations. It will be, at best, a strained relationship when attempting to achieve a goal of some sort, though, because Sarkh's operating methods and Arimax's are very, very different.
Ia: Arimax immediately likes Ia, and identifies her as a possible good friend, given her outward personality, her dedication to the removal of the Empire, and her disdain for killing any more than absolutely necessary. However, he is also likely to manipulate her into a very, very uncomfortable position in order to advance the Rebellion's goals, under the assumption that he can apologize later.
Gin: Arimax is uncomfortable around Gin innately, and isn't exactly able to lay his finger on why, even with his extreme insight. Gin may be slightly more difficult to use due to his Force sensitivity, although his emotions may cloud his judgment. Arimax privately thinks that Gin's armor is pretty silly, and wouldn't stand up to inspection by a real Mandalorian.
Gendro March: March's tactics are fairly close to Arimax's, albeit with a gun instead of with a dagger and words. He hides himself well, which Arimax feels is the mark of a professional, but Arimax also feels that it means he has some competitiion. March's lack of dedication to anything but himself worries Arimax, as betrayal is very much possibile. Open professionalism and deep paranoia.
Urgop: Explosions are fun. Paranoia is good. Hatred of the Empire is better. Arimax likes Urgop a bit, and feels that he would be a friend if he weren't quite so twitchy.
Renga Laxu: Arimax sees Renga as a fun comrade to be around, and may try to befriend him. Good conversations on morality, empathy, and wordplay can be expected, at least until Arimax grows tired of company for the day. Believes Renga is too friendly, though, and is leaving himself open to easy betrayal.
Keenan: A real Mandalorian? Arimax isn't sure exactly how to respond to that, though he knows that the Mandalorians have worked with the Hutts in the past, and their culture makes them unlikely to betray others without a very, very good reason. He trusts Keenan, but isn't totally sure if he likes him or not.
Corvi: General irritation. Distrusts those who have worked with the Empire, even if they were smuggling on the side, and Corvi isn't much of an exception. Knows that Corvi won't betray the group easily, though, so at least there's that.
Vixai: Skilled in espionage, dislikes combat, similar operating methods and similar reason for fighting against the Empire. Arimax likes her talents and personality.
PLsTRS: Arimax trusts PLsTRS and very much enjoys his presence. Good droid. No way in hell he's going to tell PLsTRS much about himself, though, given his tendency to answer any and all questions.