You are looking for the lowest, DOGECOIN is definitely the lowest, it may not be the fastest but it will take time for your transaction to confirm. Of course, XRP is the fastest but the fee is quite high compared to other altcoins with some good liquidity also.

I would spread my wealth to USDT, USDC or any reputable coins out there then cash out safely because in this scenario I could catch the glimpse of massive dumping otherwise I'd weep my tears because at such high rate and if it's to get dumped without me knowing I'd definitely missed the sky high profit.
But, I'd definitely set an alarm at certain price point just incase because always watching the market is not really my thing and will only makes me stressed out, moreover there's bot that automatically sell if the market got dumped.