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As mine's a needle feed I don't have much choice, I was planning on getting this which looks about as wide as yours. https://www.trojansewing.co.uk/product/adj-binder-presser-foot-needle-feed/
I might go for the real Suisei foot then, looks a bit better: https://majmasz.pl/pl/p/Oprzyrzadowanie-SUISEI-nr-kat.-SAN55-stopka-standardowa-ruchoma-do-lamownika-do-maszyny-z-kroczaca-igla-Hinged-Binding-Foot-for-Needle-Feed-Machine/76784
I think you can get on of the SAxx (e.g. SA45 or SA130) feet which are easier to get by, I believe the number is specific for each tape width. The foot for a finished width of 13mm looks about as wide as the one you have though.
€ 17,91 15% Off | Swing Away Adjustable Plain Raw Single Fold Binder For Industrial Sewing Machine
https://a.aliexpress.com/_m0elDI1
I looked at the Suisei binders Mack Workshop uses but they’re hard to buy and about thrice the price for not much difference. Although I’ll probably end up getting one as I find out this cheap one is a bit meh.