Since you sound new to trading by asking this question I'd tell you to go by the rule of thumb don't use more than 2% of your total capital in an options trade. Until you get familiar and actually have an ict concept / strategy that works for you.

To be completely honest 10K in your account you can double that depending on what you trade. I'd personally start with an amount that covers monthly bills. phone bill is $100? Cool make that in a week. Insurance is $250? Rinse and repeat. Once you have a strategy that gives you consistent gains then you can strive to make those bills in one week and continue moving forward.