The Eastern Catholic Churches those in Communion with the Pope] do have married priests - BUT the priest has to marry before ordination. If he’s not married then he has to remain celibate - he may not marry after Ordination.
The Orthodox not in communion with the Pope ] also have married priests - again they marry before Ordination .
Should the priest’s wife die occasionally exceptions may be made for him to marry again , but normally in both the Eastern catholic and Eastern Orthodox and Oriental Orthodox ] Churches the priest would not be permitted to marry again - i.e. he would remain celibate.