What are compounds I can use for those goals while having detection times under a few months? : Why risk it.
Which ones to avoid? : All of them
Where can I learn about this? : Definitely not here.
You also mentioned in your other posts that money is tight. And considering you've posted the same "I'm injured" story three times, what exactly is your plan here?
Are you going to run a short cycle and follow it with a proper PCT, or are you planning to quit cold turkey?
Because if it's the latter, you're risking your endocrine system and potentially hurting your performance long-term. Sure, you're young enough that you'll probably recover, but that's still a pretty stupid gamble considering what you have on the line.
And let's say the cycle works and you start putting on noticeable size while you're rehabbing. The minute you show up to camp looking significantly bigger, or people start hearing rumors, what's stopping them from deciding to test you? Depending on the collegiate organization you're competing under, that could become a problem real fast.
You're risking your health, your performance, and potentially your eligibility, all while trying to recover from an injury. It just doesn't seem worth it.