While being somehow dated as it was introduced back in 2015, it received some midlife updates and still holds up with the current models, at least in smaller dimensions. At the right price, it could be a great choice.
215/75 R16 doesn't belong to the most popular dimensions for winter tyres - there are 36 tyre models available, which can be compared to 185/65 R15, 195/65 R16, 165/60 R14. Let's break down the sizing - 75 is height of the tyre, which is calculated as 75% of the tyre width (215mm), which means the sidewall height has 161.25 mm. The wheel diameter is R16, which means it fits to a 16 inch/406.4mm diameter wheel. The total circumference of the tyre is 2289.91 mm, which is very similar to 245/45 R20(2288.65 mm), 315/35 R20(2288.65 mm), 245/40 R21(2291.48 mm), 325/30 R21(2288.34 mm), 275/40 R20(2287.08 mm), 225/55 R19(2293.68 mm), 275/45 R19(2293.68 mm). There are multiple speed indexes available for winter tyres in 215/75 R16: N(km/h), R(170km/h), S(180km/h). The same goes for weight indexes: 111, 113, 114, 116. You can find 215/75 R16 on 4 car models - mainly CITROËN, Ford, Land Rover, Peugeot.