Should i switch my son to a toddler bed?

My son just turned 2 and he still sleeps in a crib. However, i usually snuggle him to sleep. Now though he will lay on the bed or couch while i sit next to him till he goes to sleep and then i just move him to his crib. I want him to just be able to lay and sleep in his bed without me holding him till he is sleeping or having to move him all the time. My question is would it be easier to teach him to just lay down and go to sleep in his crib or in a toddler bed where i could sit next to him and slowly work our way to me not having to sit next to him? Or should i leave him in his crib?