I have this one and I love it: https://www.amazon.com/dp/B01M0L5L8Z/ref=cm_sw_r_cp_apa_glt_fabc_APT31S8QKF2E0SH633D9?_encoding=UTF8&psc=1

Also extended cab short bed???? I don't think I've ever seen an extended cab short bed haha unless you mean crew cab

I like one: MaxMate Soft Roll Up Truck Bed Tonneau Cover Compatible with 2005-2021 Nissan Frontier; 2009-2012 Suzuki Equator | Fleetside 5' Bed (59") | TCN169034 https://www.amazon.com/dp/B01M0L5L8Z/ref=cm_sw_r_apan_glt_fabc_K1W91TGPWC49CR7V7B0C?_encoding=UTF8&psc=1

I haven't tried many covers but I got this one and it's great. Doesn't cost an arm and a leg but still a decent cover. I like how it rolls up to give you full access to the bed if you need it.