I am not working much in colour but sometimes I do. The colour pencils I use are just some pencils for kids, nothing fancy or expensive really. However I am thinking of investing in some Faber Castell ones as I love the brand and they might be easier to blend - at least that's what I am hoping. For now these are fine to work with.
I don't have any specific colour tutorials but I might make some in the future.
Drawings made with colour pencils: 1 2 3 4 5 6