Box dying hair

Before anyone says anything I’m going to box dye it, even if you say a salon is better sorry 😂😂 don’t have the time for the salon and the times the salon have dyed it I don’t particularly like it. Nor does it last

What would u say is a good brand to minimise damage??

My hair is a warm brown and I’m trying to make it a cool brown (to match my roots) I’ve boxdyed it twice before from blonde to the cool brown but it’s started to go a bit warm.

Last time I dyed it it went black tho so preferably want to avoid that (although I did really like it)