Petru rhymes with:
andreu, andrew, carew, chesebrough, curcuru, deroo, ecru, erburu, hebrew, huairou, kakumaru, kanemaru, kennebrew, killebrew, kinnebrew, landrieu, larew, lerew, majrooh, masaru, minoru, mitsuru, muldrew, mulgrew, noboru, pettigrew, renfrew, shigeru, shugrue, sugrue, sukru, toru, toshiharu, unrue, unruh
Petru sounds like:
padre, padro, pater, patera, patrie, patry, patter, pedro, peter, petery, petr, petra, petre, petrea, petree, petrey, petri, petrie, petro, petrow, petry, petter, pettry, pewter, phedra, piedra, pieter, pietro, piotter, pipetter, pitre, pituitary, poetry, poitier, poitra, pothier, potier, potter, pottery, poudrier, pouter, poutre, powder, powdery, powter, puder, puppeteer, puppetry, putter, putterer