Dangerous Things (popular RFID/NFC implant makers) sell dual 125khz+13.56mhz clonable rings, but they're way overpriced ($130). I bought my "V1" back when they were still $60, and FWIW, if you know what you're doing, it does work.
I've also seen some rings on Aliexpress that purport to support the same capabilites, but havent personally tried them out yet.
When aquiantances ask me for recommendations I always tell them to look into Aliexpress over Dangerous Things as they're significantly cheaper, but I've also heard really mixed things about the various offerings on the site.
The only time I've been scammed was when I bought a 16 TB USB drive for $3, or a $10 mosquito bite thing that didn't work. Basically, if the thing sells for much cheaper than anywhere else, it's a scam, otherwise you're OK.
I've bought from Ali hundreds of times, maybe thousands of items. The quality isn't always great (what can you expect for the price?), but it's very rarely scams.
I've also seen some rings on Aliexpress that purport to support the same capabilites, but havent personally tried them out yet.