I'm a phd student in number theory, and I'm required (by the funding council) to publish any article I write in open access journals. The problem is that all journals I can find are either out of my league (but open access), or at the right level (but not open access). So I was wondering:
Is there a list of good open access journals specialised in or biased towards number theory? If not, what are good open access journals (with a rough ranking in terms of quality and/or prestige) for number theorists?