If you don't want to risk the volatility of the assets, you can choose USDT to gamble. However, volatility is not negative at all, sometimes it also gives positive results especially if the market is bullish, right now it's bearish so it's not good to gamble with volatile assets especially if you want to withdraw it right away after you gamble.
That's what I'm doing every time I got some big amount of rewards from bounties back in the days because I was scared of the volatility hitting my current crypto -50%. But one day I forgot to convert it to stablecoins and some rare event happen that day and when I look at the price it raises and that's the best forgetfulness I ever had because I gained a decent amount of money from that event.