Has @Ryukan contacted you with a discord invite? You would probably get more notice there for these questions. However, my response would be to play what you want. In my experience, 5e doesn’t require a “balanced” party like prior editions. We lost our paladin player, who was planning to be the party “tank”. Currently, we have a heavy armored cleric that is filling that role. Other than a cleric, we have a Circle of Stars Druid, a Gloom stalker Ranger, and myself a Drunken Monk. In combat, with our current party mix, the Cleric is mostly acting as Tank/Heals, the Druid in Chalice Form for Heals, the gloom stalker DPS, and myself being a drain on the healers while attempting to off-Tank/DPS. So either of your two choices could slot in here.
We are missing Arcane caster, but so far haven’t really needed it.
Oh, and welcome.