So far as archaeological sites in the Balkans go, Butrint is an absolute highlight. I visited Butrint while staying in the popular resort town of Sarandë for 2 weeks, in 2019. Trip from Sarandë is very easy. There is a direct bus connection with Butrint. As there were no 'real' bus stops, we had to stop the bus on the middle of the public road. The route is very scenic. I would recommend stopping at the nice town of Ksamil on the way back, just to lie down on the most well-known and popular 'beach' of Albania. I must say, beaches are not Albania's strongsuit. Butrint is a very nice collection of Greek, Roman, Venetian and Ottoman archaeological sites. Tip: make sure to visit the castle on top on the hill, as you get a very nice view from there. You could spend at least a couple of hours just wandering around.