Standard is one LoR from the guidance counselor and then one each from two teachers who’ve had you in their classrooms. One really should be from a teacher in the field you hope to major in.
The point is educators sharing with other educators. This is not like a rec for a job.
Some colleges don’t take LoRs, some limit it, etc. You do need to see what your targets say about this. And you can look at the Common App and find the “TE” or teacher eval forms, to get an idea what’s asked.