Here are a few suggestions for your next trip from Prilep(BG)

In 2 hours, you can reach Burgas, Sliven.

In 3 hours, you can reach Varna, Stara Zagora, Shumen.

In 5 hours, you can reach Plovdiv, Dobrich, Haskovo, Veliko Tŭrnovo.

In 6 hours, you can reach Ruse, Pleven.

In 7 hours, you can reach Sofia.