Togetic raids

Its hard. Togetic's a tank stat wise, and because its got low attack, you get charge moves slowly (plus its got massive defense)

If you're aims a duo, Metagross with meteor mash is the only viable coutner for a duo and needs at least ultra friends at level 35 from what i've heard level 30 with best friends

Second best to metagross is tyranitar (which even in weather boost lags behind metagross) and everything else legs behind those two in either DPS or DTO. bring just the metagross, even if partially cloudy, then some tyrantiar can be filler.
On the off chance its raining, then Raikou and Zapdos will do, as will Luxray If you have one
Most of its better coutners are actually gen 4 pokemon like electavire, rampardos, mamoswine had they been released, it would be a much easier duo (But metagross still beats all, rampardos might out DPS, but its a glass cannon). But if thats not your aim, and you have a third person its a lot less strict what you need to beat it.

I duoed it this morning with my daughter. It was raining which produces 4 counters even better that Meteor Mash Metagross: Raikou, Deoxys, Zapdos, and Luxray.

Of those, we only had Zapdos and MM Metagross powered up. Thankfully, it only took 3 mon from each of us.

We had Best Friend boost, BTW. 10 seconds left.

Raikou in the rain is far and above anything we used. So that should make it easier.

I've successfully duod Togetic three times with an Ultra Friend. I'm level 40 and he's 39 but he only has weather boosted Meteor Mash Metagross levels 31-34 and I have one maxed to level 40 but the rest are also levels 31-34. If I remember correctly we never got past our third Metagross anyway, so if you and your friend have at least 3 Metagross with Meteor Mash level 31-35 you should be able to do it also.