Matfer makes something very similar to your rubbermaid model.

https://www.amazon.com/Matfer-Bourgeat-Exoglass-Pelton-Spatula/dp/B0000VZCF2/ref=sr_1_5_mod_primary_new?dchild=1&keywords=matfer+spatula&qid=1615190882&s=home-garden&sbo=RZvfv%2F%2FHxDF%2BO5021pAnSA%3D%3D&sr=1-5

If that doesnt work, I also like OXO plastic one.

https://www.amazon.com/OXO-65191-Grips-Flexible-Turner/dp/B0000CCY1T/ref=sr_1_1?crid=1K5NWKAPKRXIW&dchild=1&keywords=oxo+plastic+spatula&qid=1615190974&s=home-garden&sprefix=oxo+plastic+%2Cgarden%2C227&sr=1-1