Hey there,
If you're only taking 2 classes, I'd recommend stats and calc. Micro/macro are really important but most programs are going to have you run through that anyway. Calc will be really important in understanding economics so definitely take that. Also, if you're looking to do anything even remotely associated with analytics, then having a basic stats background will help you get to more complex topics quickly. For example, you can't just jump into regressions models if you don't know correlation.
As for taking courses at a community college or a more prestigious program, that comes down to why you're doing what you're doing. If the goal is to just plug your transcript, then a community college is definitely good enough. Also, if you learn better in person, then go that route. However, if you're looking to set yourself up on the right foot going into your MBA, then you can explore other programs, some of which might be online.
Bhavik