Fang is like, a perfectly reasonable vanguard for a lot of cases, if she seems a bit weak it's mostly because vanguards are overall not the spiciest class. I know you've been told that Beeswax is weird/bad/hard to use/whatever, and sure, she's a bit different, but she does do things that no other operator can manage. Waai Fu is an overall amazing tech card of an operator, since both her silence and her attack down skills are not terribly common effects, and having them on demand is nice. Gummy is an operator I never leveled personally since I got Nearl early on, but there are plenty of cases where Gummy's form of healing is much more useful, and overall she's just a nice reliable tank and never really stops being that. Tomimi is also an operator most people will frown upon but having leveled several "bad" operators myself, the thing to know is that with resources invested in them, every operator in the game will find a use. As far as the ones you didn't mention by name, Specter's second skill makes her too angry to die, which is extremely powerful, Ceylon was sort of a prototype for her archetype, so she doesn't have the bells and whistles the others have, but her healing range will likely be useful for you, and Skyfire...well, Skyfire is very rude about infected operators, to put it lightly. Oop, sorry infodump, I just like arknights a lot.
the infodumping is welcome don't worry!
and also, yea, I've been told beeswax isn't the best but she's saved my ass a lot and I like her design so I'll keep using her. Fang is fine, but I got spoiled by being able to borrow operators and now I need Texas in my life. Currently this is my general team setup
I'm working on getting specter and waai fu promoted for some missions, but I do like them, they've been handy
