TechMatte via Amazon has select amCase/TechMatte Nintendo Switch Lite Accessories on sale when you apply the corresponding promo codes
amCase Nintendo Switch Lite Carry Case $8.95 with promo code V5LZ684J
https://www.amazon.com/dp/B07W72FRVG?sdsr
TechMatte Nintendo Switch Lite Grip Extender Case $8.95 with promo code 6KRAQ5GK
https://www.amazon.com/dp/B07W6HJKLZ?sdsr