Paid transfers should be available in either Era or Wrath. Wrath servers were transfer locked but are now opened. There are free transfers available in both Era and Wrath.
Free PVP Era transfers to Whitemane.
Free PVE Era transfers to Mankrik.
Free Wrath transfer details are here:
Is the character you want to move in Era and on PVE? You cannot move from PVE to PVP in Era so you’d have to reroll.