The absolute leader of interest is football: the matches of Primera División, Superderby (Boca-River), Copa Libertadores and the top Euroleague form the bulk of the bets.
Further - tennis (traditions of the "Argentine school," ATP/Grand Slam), basketball (League National, NBA), rugby (URBA, international test matches), motorsport and MMA/boxing.
The betting market is organized according to the provincial model: legal operators work with local licenses (for example, LOTBA in CABA, IPLyC BA in the province), and access for the player is determined by his jurisdiction.
Audience behavior - mobile: live betting, SGP (same-game parlays), cashout, local promos for derby and playoffs.
Offline PPPs are found pointwise, but the focus is on online platforms with responsible limits, KYC and age control.