Hey guys! I recently started playing in a new 5E party. We currently have 2 rogues, a cleric, and a sorcerer, but I have yet to pick my own class. What class would you advise for this group?
I'm just going to throw a couple of ideas out there to see what catches your fancy.
I'd make some kind of a tank. I've been meaning to try a Fighter 1/Enchanter X for the fun of Instinctive Charm/Hypnotic Gaze combined with AC 21 (+5 for Shield when needed) plus disadvantage from Blur. The first 5E wizard I ever played was an Enchanter so I have a soft spot for them, but the normal Enchanter doesn't get to use his Instinctive Charm much because the situations where it is useful (surrounded by multiple enemies) are exactly the situations wizards should not be in. Making him a plate-armored Fighter at first level fixes that; and Hypnotic Gaze is unlimited-use single-target crowd control (which is even better than Grappling in some ways) which ought to make one- or two-monster encounters a cake-walk. Hypnotic Gaze ends when someone damages the target, but the target does not get a fresh save each round, so your friends should have plenty of time to set themselves up for a win vs. the monster you have hypnotized. For example, grapple/prone the monster (and also tie it up with a net or with manacles) while it is hypnotized and everybody ready actions to hammer it as soon as one person does, so you get almost two rounds of attacks on it before it can respond. That essentially guarantees a kill, which means that encounters where the monsters don't outnumber you are easy--and when the monsters do outnumber you, that's when you bring out the AoEs like Fireball instead relying on cheap-o tricks like Hypnotic Gaze.
When you're not busy hypnotizing, you can always attack in melee with cantrips like Booming Blade.
Another excellent party tank would be a variant human Moon Druid (either Sentinel or Moon Druid, depending on your preferred playstyle). This PC would be more short-rest-dependent than the Enchanter; use it if your party has lots of control over their own tempo so you can rest and regain wildshapes when needed. You have plenty of long-rest resources too, such as the ability to summon a pack of wolves with Conjure Animals, and excellent crowd-control spells like Entangle and Spike Growth plus buffs like Polymorph.
Finally, there is the option, instead of making a tank per se, to go with the flow and make yet another ranged character. I'd go Eldritch Knight Sharpshooter. Pick up Defensive Duelist at some point and you can switch-hit as a tank too (AC 20 + 4 by 9th level).
BTW, talk to the cleric about tanking. See if you can get him to cast Warding Bond on you for +1 AC/saves and resistance to everything.