Countering Yasuo is easy. Just play Garen.
All you have to do is silence him and spin to win. You'll out trade him all day. And you can build tanky and still manage to burst squishies, just like Yasuo can. As you can see there are many counters to Yasuo. Plz stop crying about him. If you want to complain about someone who's actually OP, let's talk about Leblanc.
and
for max effectiveness.
will just plain damage blow you up if something like
or
who can just harass you all day with E use then punching it and range poking to all in maul you respectively.
(she can basically move around while using her kit meaning her lack of abilities interrupting her movement is her 'escape' tool),
and
(low cool down tumbles, knock backs and mini move speed buffs while chasing on top of like Yasuo, gravitating towards the three in one critical, attack speed and move speed bonus items of
and
).