Most students will find that there is no "perfect" lab for them but that many labs would be a good fit. Once you have identified the lab you would like to join:
Some students choose to have more than one advisor. Talk to your prospective advisors and first-year advisors if you think this makes sense for you. Many students have informal second advisors and faculty with whom they collaborate. In general, with co-advisors it is important to delineate responsibilities between them.