[ffsm8]

Depends on the definition of cheap. I.e. firstly is available in most countries afaik, no matter where your residence is.

https://www.firsty.app/

It's not very cheap if you want to use it for months, but plenty of other options around too

[RandomThoughts3]

Firstly is extremely expensive. To give you an idea, my 200Gb/month 5G uncapped speed plan costs me 14 euros a month here in France.

Amusingly this plan includes 40Gb/month in Germany at no additional costs which is much cheaper than a German plan.