My DS14 plans on 2 years of French, that's it, but he plans to become a chemical engineering. He's looking forward to taking plenty of math and science classes, and is on track for calculus in his junior year. I don't see how more language would help him.
Meanwhile, my oldest took a bunch of foreign language classes, but she's now a bilingual teacher. She actually couldn't fit AP Spanish into her schedule in HS, but then tested out of more classes than AP Spanish could have gotten her, so, go figure that one out! She also found that, what helped her with college admissions was going against the conventional wisdom. Rather than loading up with AP classes, she took a 2-year Early Childhood Development class that was offered on the vo-tech side of the school. She had plenty of honors classes, but schools were more impressed with her portfolio of work with students, her lesson plans, etc.
My point is, worry less about impressing colleges by checking certain boxes, and work more on demonstrating a passion. An engineer needs the heavy math and science that, frankly, would make my other kids want to poke their eyes out. But my teacher could clearly show how serious she was about teaching. For another child, it could be music or photography or psychology.