I agree with Bill, shippng a plant to MA this time of year is iffy.
Although they do not seem to carry Oncidiums, Logees is in MA and it would be a fun day trip to visit their greenhouses. They only have a few varieties and the plants they ship are pretty small but they do have larger, blooming plants on site. If you have never seen the place it is a true experience for any plant lover.
https://www.logees.com/orchids...