We do ask that requests about availability for specific dates NOT be asked or answered since such availability can (and will) change. General availability questions like "What are my chances of finding a SSR Studio at 7 months for late August" are welcome on the DVC Member Services Forum.
hopefully, someone will have some general advice, but specifics are not allowed.
my general suggestion is that at less than 7 months, the largest resorts are the most likely to have availability. the largest resorts are SSR, OKW and AKV-kidani.
also the weeks closest to Easter (in April) and weeks where big states have spring breaks are harder to book (ex. I believe FL spring break starts the week of March 22 this year)