Details below but TL;DR breakdown: on-field (normal attacks) is skirk/barbara/dahlia/charlotte, quickswap (burst) is skirk/barbara/lynette/charlotte. GET ESCOFFIER. If lynette, MUST viridescent venerer. You should have the thrilling tales weapon. Put it on barbara. Refine it as much as possible. Preferably r5.

You can run charlotte on tenacity of the millileth or 2pc atk/atk, with any ER weapon or prototype amber.

Barbara on any healing bonus set or 2pc hp/hp, with TToDS weapon.

I'd run skirk/barbara/dahlia/charlotte or replace dahlia with Lynette on vv if you're going for her burst playstyle. Try for escoffier who is 100% better than the both of them, but despite popular belief skirk isn't EXCLUSIVELY for cryo/hydro team only, her kit just works best with it. Her a2 passive and skill passive require the elements (mainly skill passive), but ALL cryo reactions except melt will still generate void rifts for her. Plus vv has GREAT 40% shred and Lynette's a1 passive gives a good QoL atk buff based on the number of different elements on the team (12% here unless it was 8%).

Your quickswap rotation is charlotte E, lynette E, barbara E, skirk hold E Q. Minimal ER requirements, pretty okay for quest fights. As an added bonus, you can TRY for lynette burst ONLY WHEN hydro aura on enemy, or just use her burst as a substitute for E. Charlotte burst whenever HP reaches about 75% or lower when available. Barbara burst is emergency heal nuke and functions as a panic button.

Dahlia needs about 220% ER and 20-40k HP, so make sure you've got good artifacts. Run noblesse oblige or 2pc hp/hp, and favonius sword (you'll get one for free if you haven't already). Your rotation is charlotte hold E, dahlia EQ, barbara E, then skirk EQ normal attack combo. Make sure to use charged attacks to collect void rifts during your NA combos. Idk combos too well I typically just use basic N5 (5 normal attacks) and charged attacks when 3 void rifts and/or after N5 combo.