I am pretty clueless when it comes to the IB recruiting, esp in the current market. so I would recommend finding someone who has gotten a summer internship in the firm your targeting and finding out how they did it. Sometimes I’ve been looking at their LinkedIn profile you can tell - eg worked for Intel prior, or a specific industry…. I would recommend actually speaking with them - he will learn an amazing wealth of information related to recruiting and admissions and it will be extremely helpful during the application process because it will demonstrate that you have done your homework and therefore will strengthen your application, If you can drop a name during the interview or in the essay. AdCom com picks up things like that. One thing is to have a plan and another is to have a plan that has been vetted.

PS. It’s really helpful for your application and recruiting if you can even narrow down the banks where you would like to work or recruit at.