Help a new man out

I am a trans man who’s having a hard time navigating men’s haircuts. In about a week I’m getting my hair dyed from dark blue to brown in order to pass better (apparently cis guys don’t normally have colourful hair?). It’s expected to be harsh on my hair which means I may have to get it cut shorter.

Currently I’ve got a bit of a mullet going on (reference photo above. I know it’s not the best lol) but I’ve always been scared to get my hair cut any shorter. I can’t seem to find good reference photos for what I want but I like the style where it’s short on the sides and longer on the top and front sort of coming over the forehead a bit. Does anybody know what to ask for in order to get that done at a hairdresser or barber shop?

I’ve also been wondering about products to use to add texture. My hair is very straight but I have a lot of it. Should I use a hair clay or texture powder? Maybe a salt spray? I need help lol

Also sorry for the long post but I really appreciate any help I can get