General online fairs for education in UK

Under the circumstances, we can’t afford to send our children to college overseas.
But I will prepare something for them to study abroad. Where can I get some information? I’d like to get some beneficial information about that in its early stages.
Today I would be able to have a personal interview with some staff. I expect this is my first time for this.
“We promise we will offer you some profitable information.”
I could use some advice.