Arsenal and Villa are both guaranteed places in at least the play-offs but they will be hoping to go straight through to the last 16 by finishing in the top eight.
The Gunners have two matches left, starting with Wednesday’s home game against Dinamo Zagreb. Depending on other results, a victory could confirm a top-eight finish for Mikel Arteta’s side.
Villa’s chances were dented by a 1-0 defeat to Monaco on Tuesday, but they remain in the top eight before their final league-stage fixture against Celtic.
Celtic are 23rd in the table – two places above the elimination places.
Brendan Rodgers’ side take on Young Boys – who are bottom of the table and without a point in the Champions League this term – at Celtic Park on Wednesday.
A win would almost certainly guarantee Celtic a knockout play-off spot.
Manchester City are a place and a point behind Celtic in 24th.
Pep Guardiola’s side face a daunting trip to Paris St-Germain on Wednesday before a home tie against Club Brugge on matchday eight.
A win against PSG would significantly boost City’s chances of a knockout play-off spot but it would not guarantee it.
A thrilling finale is assured on 29 January when all 18 final group games will be played simultaneously at 20:00 GMT.