If you want something compact with a small footprint then an older 2x10 on its side or a 1x12 is probably the only way you'll get something around your remaining budget. Unless you fancy a longer drive you'll be looking at local collection only listings on FB Marketplace, eBay etc. Brands like Peavey, Ashdown, Hartke, TC Electronic, Laney. Not much point in recommending a specific type of cab as your budget constraints will decide what is attainable over everything else.
Hartke XL cabs are decent and go for pocket money now, on here in London for £75 which would bring you under budget:
https://www.facebook.com/marketplace/item/1185251983336041/
Laney 2x10 with neo drivers near you for £150 here, bigger cab though:
https://www.facebook.com/marketplace/item/2487813131416873/
That SWR I linked to above would be fine, be aware it's a 4ohm cab so you can't add another. I'd grab that Hartke as chances are you'll see another one for sale before too long and can have a vertical 4x10 tower which should cover every gig you're likely to do without PA support.