Otium via Amazon offers its Otium Tempered Glass Screen Protector for Nintendo Switch 2-Pack for $4.35 with free shipping for Prime members. That's the the lowest price we could find for any two similar screen protectors by $3. They feature a 0.22mm thickness and silicon adhesive. They come with alcohol prep pads, dust removal film, and a microfiber cloth.

Update: The price has dropped to $3.99.