There is a discount code ‘Bright20’ on eBay at the minute for a few brands that do solar, power packs, even fridges and portable air con in some cases.
Bluetti, EcoFlow, Renogy, Anker and Vtoman (the owner of Gooloo).
The vtoman jump starter and tyre inflator is great on the vans tyres - fast, cordless and the battery lasts well. Haven’t needed the jump starter feature but have used the light and Used it as a power packs. But the pump gets used a lot and is still going strong - had mine almost 3 years now.