Need some ideas

Only done one solo trip before back in 2017 to Seville and although I enjoyed it I was really apprehensive going on my own. A friend had just died and I really needed space.

Again this year I’ve had a tough time, losing another close friend and just everything being so full on. I need that switch off time, just to be, really.

I’m single and although I have discussed trips with friends our timing is always off. So I’m needing some suggestions!

Looking for Europe, not expensive, more peaceful than lively. Enjoy history and architecture, good food, beaches are good. Do I go all in package or do I set it all myself? (Flights, Airbnb etc) I’m a good organiser. Need last minute so before last week of October.

Any suggestions gratefully received 😊 TIA.