Some of the more obscure Avengers might be worth considering... Ant Man (Lang not Pym version) for example. Would Vista get the Wasp? Scarlet Witch? Would anyone get Vision? Ignore the gender when assigning?
Big problem with Ward-Avengers is power levels - Vista is the only one with Avenger-rank powers. Also, use MCU or comics Avengers?
Taylor-Juggernaut is definitely Avenger-rank power. She could practically take them on, on her own. As a throw-away thought, Thor might be able to dump her in another dimension... Stark would likely have to break-out some really fancy gadget...
A passing thought - trying to stop Taylor, maybe change her direction, much, futile. What if someone flies-up behind her, accelerates her, so she ends-up a good ways out in the Atlantic?
(I'm not convinced she has neutral buoyancy, so swimming issues, but, don't think she'd drown. Navigation issues, so can walk back, on the sea-bed, to BB?)