The most profitable path is to buy buy buy and buy again.
At the current prices I do not think it will be a good idea. The profit is not that much so I wouldn't advise buying right now, play safe.
In the long run, holding fiat is not playing safe.
You probably mean 'ín the short run', expecting a major pull back soon. Well, I've been expecting pullbacks since $20k. And look where it brought us
There is nothing wrong with playing safe, but with Bitcoin in a bull market, it isn't a winning strategy.