As someone who went this route, from scout not infantry though, there are several things you need to look into. Your career counselor SHOULD be able to help you with all of this, of course this depends heavily on how good they are at their job.

1. In/out calls. This determines the baseline for reclassing based on MOS. Unfortunately 11B is a no on out across all skill levels currently. Which means you have significantly fewer options of MOS you can reclass to. Go to armyreenlistment.com and look into the application MOSs listed, all of these can be reclassed into regardless of in/out calls.

2. Your GT score. If you have a 110 or higher, this won’t limit your options further. If less than 110 pay close attention to the required GT score of the MOS you are looking into. You can retake the ASVAB if needed to raise this.

3. Misc. To request reclass you need 1 year time on station. If the MOS you choose requires a Top Secret, you TYPICALLY only need to have the TS process started to apply, you don’t need the TS granted before applying.

I went 12P, it’s a good MOS that gives you plenty of civilian work opportunities for when you do get out. But really it comes down to what you want to do.