Hello I wanna start playing the dragon quest series (DS) but I'm unsure of which one I should start with.
If you mean the main series you can start with either V or IV, you won't miss out on any story related stuff if you start with DQV just so you'd know. One tip I can give u for DQ5 is to not buy equipment once you reach a new town, instead save your cash and buy equipment in the NEXT town.