Yes you can see two counselors or therapists at the same time if you want too to get more help.
But it's usually advised to only see one counselor or therapist at a time and then if your current counselor or therapist didn't help you like you thought they would then you could see another therapist or counselor.
I only saw one therapist and counselor at a time and then went to a new counselor and therapist later on because I didn't get enough help from the first counselor and therapist.
But you can indeed see tow counselors if you want too at the same time and sometimes it may help better and sometimes it might not.