Truth be told, he reminds me a bit of Kassian.
You can see the skill, and the physical talents, but I'm not sure he's an ideal option on a defensive line; his game starts becoming too "safe" (in the sense he stays back defensively, but he still makes mistakes with the puck though). While he's adequate defensively and a good PK'er, I'll never confuse him for a defensive forward.
As said, this reminds me a lot of Kassian during the first half of last year; or to a more extreme level: RNH and when the team played him as the 3rd line defensive centre. You're taking a player that's "just good" defensively and asking them to help form a shutdown line.
I know people don't like the idea of a player "falling up," but I think the best fit for him would be in Jurco's role, and as the 3rd wheel on the RNH and Neal line. Khaira and RNH have looked good together in the past, so it might be worth a shot. Plus I wouldn't mind Jurco in the bottom 6, as he would bring a little creativity to the group. He and Sheahan actually use to be effective line mates back in Detroit in the early part of the decade.
Speaking on his current deployment though, I don't really like the Khaira-Sheahan-Archibald line, mainly because I don't know what kind of identity it has. Khaira and Sheahan make the line too slow to be a transition/dump and chase/forecheck line, where Archibald excels; and Archibald can't cycle, which is what the other two need. Russell was a better fit for those two.
It's the same issue with the Nygård-Granlund-Chiasson line, there's just no identity, because as a group they're not big or fast. IMO, you need two speedy guys for a group to be a good transition line; and for a grind line, you can't have a guy that's a liability on the cycle.
Khaira should spend the next game or two in the PB, but I would be curious to see a lineup like this in the coming weeks.
Draisaitl-McDavid-Kassian
Khaira-RNH-Neal
Nygård-Haas-Chiasson
Granlund/Jurco-Sheahan-Archibald/Jurco/Russell