Let’s look into the number of ways you can attain that rich vocal sound in your mix. Layering your lead vocal with doubles can put on thickness, color and lift to the most important element of any song; the lyrics and melody.
What is doubling vocals? It is the process of creating additional versions of vocal tracks and mixing them in with the original. It seems to be a simple process but there are several factors to consider when doing so. If you have the tools to create various types of vocal doubles, try to experiment on how it can create a difference to your mixes.
Read more about this here: https://www.waves.com/double-tracking-vocals-different-approaches-for-a-richer-mix