Paradigms don't really work here. Argentina is its own world.
Roughly speaking "Frente de Todos" is left and "Juntos x Cambio" is right. But....
Since the return of democracy you have:
- Communists (far, far-left. Small political presence. Kinda written off as the angry crazies who smoke too much weed.)
- Socialists (left but moderate and similar to a labour party in UK/AUS/NZ/Canada/Nordic countries etc. Think Europe and not the USSR. Small political presence, traditionally more active in some provinces like Santa Fe.)
- Peronists (A total mixed bag of ultra-nationalists with its own idealogy, from actual fascists on one side to Venezuelan/ Cuban style extremists on another. Somewhere in the middle there are also boring career politicians. Generally more progressive on social rights. Economically they vary from capitalist / corporatist to socialist or even chavismo. Unfortunately, I can't sum up their politics since it involves something like 20 very wordy, generic and often contradictory tenants which leave the reader feeling more confused than before they asked the question "what is Peronism?". During democratic times, they have ruled Argentina for the majority of the 20th and 21st centuries and they are perhaps the most long-standing political party.)
- Various neoliberal factions sometimes referred to as Macrists, even if they can't actually stand the fool (centre-right to the far, far-right and usually coalition parties rather than a long-standing party or movement like the US GOP. Usually more conservative on social rights such as abortion etc. Economically, pretty much like any conservative party in UK / AUS/ NZ/ Canada etc. Pretty bland and don't usually come with so much nationalism attached.)
To summarize, everyone has their own political fetish and sees the world based on their own personal reality and pasión. That means the only way to really get things done is with coalitions and muchos frenemies.
Like everything in Argentina, politics is fluid.