Fully healthy (minus Francouz) the Avs are pretty much looking at this 22 man roster right now:
Drouin - MacKinnon - Nichushkin
Lehkonen - RyJo - Rantanen
Wood - Colton - Tatar
Cogliano - Olofsson - O'Connor
MacDermid
Toews - Makar
Byram - Manson
Girard - JJ
Hunt
Georgiev
Annunen
With Francouz added there wouldn't be enough capspace to run a 23 man roster, but with him out there's enough capspace to add one more (or even two if Cogliano starts on IR).
So for now at least it seemingly comes down to the 6 guys listed below (and anyone the Avs may like on waivers) for basically one spot (or possibly two or if Cogliano starts on IR).
F: Tufte, Meyers, Kozun (PTO), Kiviranta (PTO)
D: Malinski, Ahcan
Meyers and Malinski are both waiver exempt which makes them easy choices to send down.
Ahcan, Kiviranta, and Kozun are likely to pass waivers too which will facilitate a decision there.
Tufte is really the only difficult decision as far as I can tell, but really it isn't all that tough to keep him up as the 23rd guy if they want to since they have cap flexibility from Francouz being out. And even when Francouz returns they could just send Hunt down if they didn't want to risk putting Tufte through waivers.