Here are a few suggestions for your next trip from Buda(RO)

In 2 hours, you can reach Ploieşti, Bukarest, Braşov.

In 4 hours, you can reach Ruse, Constanţa, Galaţi.

In 6 hours, you can reach Iaşi, Craiova.

In 7 hours, you can reach Ungheni.

In 8 hours, you can reach Veliko Tŭrnovo.