The Argentine moved to the Bundesliga from River Plate in 2017 and quickly adapted to the rigours of a top European league, contributing nine goals and four assists during his debut season at Bay Arena.
Alario, 26, has been a key member of the Leverkusen squad once again this term, notching 11 goals in 34 appearances across all competitions.
Alario has found himself on the fringes of the starting XI recently and his future at the club is unclear amid ongoing transfer rumours.
Aldave revealed in an interview with La Pagina Millionaria Radio that his client is on Atletico's radar, stating: "There are several prospects for Alario from Spain, one of which is Atletico Madrid."
Atletico are reportedly on the lookout for a new frontman due to the struggles of Nikola Kalinić and Diego Costa over the last 11 months, with Alvaro Morata's future still up in the air after his arrival on loan from Chelsea.
Antoine Greizmann has shouldered the goalscoring burden for Diego Simeone's men on his own for much of the year, as Los Rojiblancos have slipped out of contention for silverware.
Alario remained coy on speculation when quizzed by reporters at the end of April, as he said: "I want to give everything to the team and I'm very happy to be here. In June, you'll see how things go on."
The Argentina international is contracted to remain with Leverkusen until 2022 and he hit a brace during his last outing, helping the team secure a stunning 6-1 win over Frankfurt on Sunday.