I like one-person tents and wouldn't choose to tour with a heavier tent by myself.
The tent has to be tall enough to sit up in though, and the door has to be big and in the right place. A small door at the end of the tent makes it feel like you are crawling into a tunnel to get in and out, but if the door is on the side wall then it can be big and makes the tent feel spacious. That's what my tent is like and it's great.
I can sit at the door to look out and there is plenty space to both sides (and no wasted space behind me where I can't reach things). When lying down, the door is easily accessible because it is beside me rather than over my head so it's easy to open to look out of the mesh panel, or open it to see out properly.
I don't think it matters that a tent is narrow if it is built this way (as long as you don't touch the walls).
This configuration also means that bags left in the porch are beside the door rather than blocking it. (In the photo, there are two rear panniers in the porch, and two front panniers in the tent.)
What about this
This one has the door in the right place for me. It's expensive, but there seems to be a
cheaper version the same size (if you expect to go touring sometimes by yourself and sometimes with a friend, a lightweight 2-person might be a better investment though).
(In contrast, I wouldn't like
this).