Not sure where to start?
Pick the thing that matters most on this particular trip. Each of these opens the same library sorted a different way, so you are choosing a decision rather than a category.
A good first solo trip
These are the places where a first solo trip costs the least effort: short distances, transport that works without local knowledge, and enough English that a problem stays small.
Female-only stays
Properties and dorm rooms that take women only. This is the one lens with property-level data behind it rather than a city-level tag, so it lists the actual buildings.
Walkable after dark
Cities where the centre is compact, the streets are lit, and there are still people about in the evening. That combination is what makes walking back from dinner an ordinary thing rather than a decision.
Somewhere to slow down
Places to stop moving for a week or two. Slower towns, smaller distances, and enough to do that stillness does not turn into boredom.
Easy to get around
Cities where getting from the airport to your bed, and from your bed to dinner, does not require knowing anybody. Ride apps that work, fares shown upfront, transport that runs late.
Where solo women already go
Places with enough solo travellers already in them that meeting people takes no effort. It matters more than it sounds: the difference between a hard week and an easy one is often just other people.
Wellness and retreat
Where the yoga, the spas and the retreats are concentrated enough that you can build a fortnight around them without moving twice.