Champions League Final - Wembley Stadium

I’ve heard just buy them on the street day of for cheap.

Based on the doc released this week, drink lots of beer, find some youths, and follow them in. There isn't an English team playing obviously, but you would find value in finding out how weird Germans can be by hanging out with them before the match.

Don't presume you can just show up and find a bar around a final to watch the match and drink at if you don't have tickets. You might get away with that a mile away from Anfield, but based on the doc on Netflix about Wembley, it's not happening.

If you like either team, I'd completely go and have a backup plan. I'm not sure about CL, but there seems to be an odd country based scheme. You can go to LINK / to look. Be aware, though, now that the teams are set, you may need to buy a hospitality package (which was completely worthless at Anfield, food I didn't want, and two pints, yay.) There will be hospitality tickets available when there aren't regular match tickets available. They're more expensive, but you get in.

If you get cheap flights to the UK for the final during those months, I'd just go and talk to locals about what to do. Worst case, you waste time around Londoners while seeing the sights. Best case, you're in London in the summer.