This is a great question - there has always been a huge divide between marketing and sales, and building strong marketing and sales alignment is key to any company.
There are some marketing roles that are more sales facing, in which it could be beneficial to have seen the sales side of things (think Product Marketing). But, there are so many marketing jobs that don't require sales experience. Jobs such as Marketing Communications, Social Media Marketing, Digital Marketing. There are a lot of companies that offer internships in these areas, so I think it would be helpful to look for internships in those areas, if you are looking to stay away from sales!