Maybe you want to specify if you'd like in ear, on the ear or over the ear?
This is worth thinking through. I sometimes work all day wearing headphones (when mixing an album) and have come to appreciate the difference between closed, semi-closed and open headphones. Also, On-ear gets irritating very quickly, so for me over the ear is the right choice. I only use in-ear on stage as a monitor or when I am on the move - either situation does not call for, nor get, hi-fi quality. Know what your aim is in terms of quality, listening environment and length of time listening.
My go-to heaphones are
beyerdynamic DT-770 Pro 80 Ohms, which at £109 are over your budget.
I recommend
Sony MDR-7506 as a quality pair, at £89. Don't believe just me: I think you will find the majority of reviews for these headphones are full of praise.
