BSCstore via Amazon has various iPhone iPhone X/XS, XS Max & XR Phone Cases on sale when you clip the Coupon on their product pages. Shipping is free w/ Prime or on $25+ orders.
iPhone XS Max 6.5" Crystal Clear Case
https://www.amazon.com/MoKo-Compa…07FZZM3
iPhone XR 6.1" Crystal Clear Case
https://www.amazon.com/MoKo-Compa…07FZXPC
iPhone X/XS 5.8" Crystal Clear Case ($3.99 – no coupon needed)
https://www.amazon.com/MoKo-Compa…075684S