Maybe making it a double jump, or even a triple jump could be good ? I know it's more basic but it works ! Or, make the jump always the same height, with the possibility to charge it before taking off, to go higher (kinda like Baptiste's superjump mechanic in overwatch), or even a mix of the double/triple jump + a mechanic to charge the jump to go higher !! (That could give more diversity and decision making during the fights !)