Futbol (football/soccer) for youth in Buenos Aires

Hello, we are thinking of moving to BA. We have a 14-year-old boy who plays recreational soccer, and a 12-year-old boy who plays competitive soccer. We have never been to BA, we'd like to go there for a month or two, and see how it goes before making the decision to move.

Are there any youth soccer clubs that offer short-term lessons? Does anyone have a recommendation for a private soccer coach in BA?

When we were in France & Spain, our boys would play soccer with other kids (at a park, on the streets, etc.). While my older son was content, it was not "enough" for my younger son.

Thank you in advance,