I've never posted here before, so let me apologize up front if it is rude shamelessly asking for help like this.

So here's my situation: a (somewhat poor) family of 5 that I know is moving to Santiago, Chile (SCL) some time this summer. A group of friends and I are trying to figure out a way to all sign up for credit cards and buy them tickets using reward miles (ideally from AZO, but GRR would also work; AZO is very small).

I have done a fair bit of this over the years, so I have been doing a lot of searching. We are a group of poor college kids and summer is coming up fast (it may be too late already), so a first-purchase bonus would be ideal. The only one I have seen is the 40k first-purchase United card (60k total), but that requires some United miles in your account already, which I don't think the others would have.

Anyway, I thought I might post this here to see if anyone knew of anything that would work. One way North America to Chile is 30k on most airlines, so the ideal would be a card with 30k first-use bonus points. But any creative ideas or help would be greatly appreciated!