Two points about the so-called "universal" sensors.

First, so long as you get the ones specified for your car, you're fine. They are not really "universal," but rather you only replace the sensor and re-use your harness connector, so you have to splice it together. Not at all difficult.

Second, look them up on Bosch's USA parts finder, I would definitely avoid using vendor catalogs. There are lots of variations.

Once you get your part number(s), search for them on various parts sites, including Amazon. That's the place I found them for the cheapest, and sometimes I see the direct fit ones for not much more, so that may work for you as well.

Also, the rear ones monitor the cats; as I understand it only the front ones are used to regulate fuel flow. So you might just replace the front ones and leave the rear ones until they actually fail.

Good luck.