Racks seems to use mainly flying and water but has a normal team as well, his sets are standard enough, but his predictions are on point. Except for one game where he was clearly tilted. The only odd thing I saw in his sets was sub zapdos on flying, and even that's pretty average.

Cam, this guy is insane. He loves fairy most, but he has the ability to use almost any type well. I know not just from replays, but in a good deal of tours we were both in. He has sets that are like wolfram in the sense that they're weird, but effective, but unlike wolfram, these aren't memes. He uses things like taunt SD bulu and roost bloom doom koko. Do NOT underestimate this guy.

There's only one replay of vodoom within the last month, and you guys will just need to see it. It speaks for itself. http://replay.pokemonshowdown.com/gen7monotype-768867582

Zugubu has really average stuff. He only used poison and flying for the last month and the only noteworthy thing about either team was SD stealth rock lando t.

Trich obviously loves steel, and has a rather odd steel team featuring registeel. It has toxic, protect, stealth rocks, and seismic toss. Other then that, his sets seem pretty standard. He is also very good at predicting the enemy moves, so be careful with this guy. He also has a meloetta normal, standard, and a flying team. He also has this weird ass ground team, but I'm convinced it was just to troll because... Well, look at it. http://replay.pokemonshowdown.com/gen7monotype-773716635

Ericsayshi uses standard fairy and flying. He also has an odd steel team, but not odd in a good or unpredictable way. It just sucks. Bronzong, lucario, klefki, celesteela, hearten,  and exca.
Oh, and a standard fire too. I forgot one.

Jaseduken has a mega shark water with no rain,a mega latias dragon that can actually hold it's ground decently well vs fairy, a steel team with mega sciz, lucario, and bisharp, a mega slowbro balanced psychic, and this weird rock team from two months ago. http://replay.pokemonshowdown.com/gen7monotype-750044129

No info found of Cryptis.