USDC is currently the option that I feel has gained more confidence than the rest. I also heard about Circle announcing Euro Coin, but honestly, after using other stablecoins like USDT and BUSD, I don't think it's too much of a risk to complain as a small trader. Despite seeing recent incidents of many projects losing the ability to support the very things they created, I also suspect many stablecoins today are being overused in this market.
USDC got a bit more attention because of two main reasons. One of them is the fact that Luna dropped so there are a lot of people who are not trusting stablecoins all that much, and fear what if the same thing happens to other ones as well, not the same method of course because USDT, USDC, BUSD are not algo stablecoins, but still a risk.
Second reason is that USA is a big nation with a ton of money, and USDC is made by the biggest (and even listed on Nasdaq) crypto company in the world, that creates a trust and since UST caused people to lose trust, finding the place that you can trust created a good reason for people to pick that one over the others.