Zerolemon via Amazon has some discounted products. Overall not bad at all
1. 30000mAh Rugged Battery Pack with quick charge 2.0&USB-C output
https://www.amazon.com/dp/B01CZR3LT2
Save $25 w/ code LKKIJVZZ=final price $42.24
Other powerbanks also look good.
2. 26800mAh solar charger with USB-C&QC 3.0 output and sos flashlight
https://www.amazon.com/26800mAh-Z…B00NIOGKL8
Save $21 w/ code ZLAQ3QH4=final price $39
3. 20100mAh 45W USB-C PD Power Bank with power delivery for Nintendo Switch, MacBook Pro and other type-c devices
https://www.amazon.com/USB-ZeroLe…B071HQ
Save $21 w/ code T2AKAFD8=final price $49
4. 8000mAh Solar Charger with dual USB outputs
https://www.amazon.com/26800mAh-Z…B00NIOGKHM
Save $15 w/ code ALOC8LXI=final price $10
5. 2600mAh JuiceStick Power Bank
https://www.amazon.com/Portable-Z…B013HJGWXO
Save $4.5 w/ code ZLOTBWCB=final price $4.5