The Boston Red Sox have five games with peanut allergy friendly seating this year. Tickets may be purchased on the Red Sox website. If you have specific questions, please email firstname.lastname@example.org.
As a local, I want to note that it is possible--and many people with peanut allergy do this!--to attend a Red Sox game and sit it regular seats, in an ordinary section. The great majority of people with peanut allergy are able to do this safely. Ask your allergist!