Hmm seriously I'd say has to be large enough to drawf SuperSaiyan Blue x20 like Ultra-Instinct.
So I wanna say another x50 but nah larger.
SuperSaiyan God (RED) a x 1000 Multiplier
SuperSaiyan Blue x 50
Ultra-Instinct/Ultra-Ego x 200 maybe x250
My Multipliers
SuperSaiyan x50
AscendedSaiyan x2-normal strength x100
SuperSaiyan 3 x4-normal strength x400
SuperSaiyan God (RED) x1000-normal strength x 400000
SuperSaiyan Blu x50-normal strength x 20,000,000
Ultra-Instinct/Ultra-Ego x200 maybe 250-normal strength x 4,000,000,000 maybe 5,000,000,000