iCloud

Need space in iCloud

See the following Apple articles:

Manage your iCloud storage

Manage your iCloud storage - Apple Support

Upgrade to iCloud+

Upgrade to iCloud+ - Apple Support

can photos be saved anywhere other than iCloud on ip8?

1.

On the computer, see this Apple article: Transfer photos and videos from your iPhone, iPad, or iPod touch

Transfer photos and videos from your iPhone, iPad, or iPod touch to your Mac or PC - Apple Support

2.

On an external storage device, see -> Connect external storage devices to iPhone

Connect external storage devices to iPhone – Apple Support (UK)

If the iPhone / iPad has an Apple Lightnng connection port ,you can use a SanDisk iXpand flash drive to use as an external hard drive. They are available in various sizes.

You can also use that iXpand flash drive as a tool to save the photos to a real external hard drive afterwards.

iXpand Flash Drive are available at Apple Store and at Apple Authorized Service Providers.

iXpand flash drive app can be downloaded from the App Store.

See -> SanDisk iXpand-flashdrive Go 

SanDisk 64 GB iXpand Flash Drive Go - Apple

Then download the SanDisk iXpand Drive app from the App Store, see -> 

https://apps.apple.com/us/app/sandisk-ixpand-drive/id1079870681