The Proteas skipper has batted at number four for the majority of his 59 T20 internationals but Dewald Brevis took that slot and smashed a maiden century in the second game of the ongoing series in Australia.
With the T20 World Cup on the horizon in 2026, Brevis seems locked in for spot in the middle-order with Tristan Stubbs while David Miller, who is not playing in Australia, is still to return.
Speaking ahead of third and deciding clash against Australia, Markram said: "Going through our squads and the players that we've got around, we think probably that is the best fit.
"We've got some guys in the middle order that are a lot more destructive than myself and we feel probably it's better off for myself and Ricks to be up top.
"I did it a bit at the IPL and am starting to do it now again at international cricket. It's an exciting role. It's always nice to bat in the powerplay and the focus is to get the team off to good starts."
The three-match series in Australia is currently locked at 1-1 with the decider set to be played in Cairns on Saturday, and Markram is challenging the Proteas batters to follow Brevis' lead.
The 22-year-old struck and unbeaten 125 off just 56 balls in the second match to help the visitors to a total of 218-7 and a 53-run victory.
Markram added: "The series so far has been good. The bowlers have been pretty good for us. The previous game made our batters look good, but it was very much an individual performance.
"So a nice challenge for our batters tomorrow to hopefully click and for them to put on a good score."
Glenn Maxwell struck a brilliant unbeaten 62 off 36 balls to help Australia beat South Africa by two wickets with one ball to spare in the third and final T20I in Cairns and seal the series 2-1.
Australia star all-rounder Glen Maxwell has stated that he is ready to take up any new role ahead of the T20 World Cup in Sri Lanka and India next year.
South African all-rounder Corbin Bosch has found himself in hot water for his innocuous gesture during the second T20I against Australia in Darwin on Tuesday.
Dewald Brevis struck the highest score by a South African player in a T20 International to help the Proteas power to a 53-run victory against Australia in Darwin and level the series at 1-1.
