How easy is it to resell tickets if needed?

Hi! I’m probably going to be in NYC in mid april, and I’m really contemplating going to Othello. I’ve never been to a Broadway show, but tickets seem to be selling out fast, so I really want to pull the trigger now. However, given how crazy expensive they are, I need a backup plan in case I’m not able to make the trip. Will I be able to resell them easily?