kind of related to my last post - I honestly think janeway chakotay and tuvok are the best command trio we get in trek. you put any of the two of them together and you get an incredible dynamic, and then all three is just. chef's kiss. janeway and chakotay have so much going on between them that I can't even begin to get into it all here, but most importantly chakotay is the one who talks her down from her most reckless and self-sacrificial plans whenever he can. he grounds her. he steadies her when she needs it, and she trusts him to do so, to worry about the little things whilst she focuses on the big picture.
tuvok can read janeway like a book. they're absolute best friends, so close they're family in all but blood - tuvok literally mind melds with her - but he provides a different sort of support than chakotay as part of her command team. he's strangely a lot more reckless, doing things like going behind her back and breaking the prime directive to acquire technology or (eventually) contacting the vidiians against her express orders to save her and chakotay. in dreadnought when janeway sets the ship to self destruct it is chakotay who grabs her arm in panic and desire to stop her from going down with the ship. and it is tuvok who remains on board, simply standing alongside her. they are partners in crime.
and chakotay and tuvok? maquis captain and the starfleet officer who infiltrated his crew and deceived him for weeks at least? two men who clearly are very different and have almost no desire to become closer. except they are now the first and second officer of the ship, and they now have two major things in common: janeway and voyager. they both care deeply about her in their own way, and they both clearly realise that they will sometimes have to work together for the sake of voyager and its captain. night exemplifies this best, and I wish there was more of that dynamic in the show, because honestly I just love the three of them so much and I think the way their interpersonal relationships play off each other is just brilliant