I'm looking for long sleeve or three quarter sleeve tops, with a fairly low scoop neck (by which I don't mean showing cleavage, but definitely scoop neck rather than crew neck), in a stretchy fabric (ideally cotton or viscose or similar, with a small percentage of elastane) and a slim fit rather than baggy around the middle.
I feel like this should be an easy thing to find, but don't know where to get them, so would be super grateful for suggestions!