I'm really liking the sound of Scolipede batoning him x2 Attack and x1 speed, but it sounds like the general consensus around here is that this is a risky strategy due to Scizor's contant presence, especially as a lead.
Scolipede is Bug/Poison and is weak to Flying, Fire, Rock, and Psychic, two of those types Tyrantrum resists.
However, Tyrantrum's Steel/Dragon/Ice/Fighting/Ground Weaknesses don't exactly make it the best defensive switch in. Luckily, MegaCharY resists all but Dragon, which is neural.
Mega Charizard Y suffers against Rock/Electric/Water, although water can slightly be mitigated by Drought. Nonetheless, Charizard automatically requires a spinner, and who is that to be?
Possible Rapid Spin Candidates
Tentacruel - Tentacruel seems like a good idea, but shares a weakness with each of the above members, and being under the sun doesn't do it any favors.
Forretress - A fire x4 weakness under the sun is risky business, although it does resist or is neutrally damaged by all of the above mentioned weaknesses.
Sandslash - Included him because of Sand Rush and how much trouble both Hippowdon and Tyranitar could give to the above trio. However, Ice/Grass/Water...
Hitmontop - Intimidate is a nice plus, but having a psychic and flying weakness alongside Scolipede is an impediment.
Claydol - I included him just because he is UU. Ice, Grass, Water, Ghost, Dark, Bug.... yatta yatta, basically, No.
Excadrill(maybe) - If he returns from Ubers (I personally doubt it) he'd have to deal with Ground, Fighting, and Sun-boosted Fire weakness. Not ideal.
It seems Forretress, Sandslash, and Tentacruel are top contenders, but still weak options. So maybe this team won't care about hazards (if for some reason you aren't running a spikes set on Scolipede, which isn't completely necessary), maybe... Defog?
Possible Defog Candidates
Skarmory - Only weak to Fire and Electric, two types easily covered by Tyrantrum, or better, Char Y and his slightly buffed SpD
Scizor - Arguably better, but running Scizor as a defensive pokemon would be something very new
Mew (lol) - I just saw him as someone who could learn defog and wasn't weak to SR. I didn't even stop to think. Maybe good for utility or BPassing, so not so bad.
Flygon - Another dragon is a bad idea, but it does have levitate and a rock resistance, making it one of the safest things to throw in a nest of hazards.
Latias - Again with the dragons and levitate. Thing is, it works well with Charizard so it could be a decent choice
Shiftry - Saw this guy and went (SAYWHUUUUT). With Chlorophyll, and Nasty Plot he could also function as another special sweeper.
Empoleon - Ground/Electric/Fighting weaknesses can be mitigated out, and lack of worry nor reliance on the sun means he's a solid member.
Gliscor - Another ice weakness, but Ground and Electric immunity can be very helpful
Defog seems like a better option to run, especially since the trio above (Scolipede, Tyrantrum, Char Y) will hardly have much problem plowing through enemy teams. And the defog candidates seem much more type varied as well as utility useful as opposed to the rigid clear-then-hazard spinners.
So Scolipede, Tyrantrum, Char Y, one of the Defog users, (possibly another special sweeper) , (another wall or annoyer) seems like a pretty steady and strong team.
SO TYRANTRUM CAN BE OU OK?! (jk but in all seriousness, I went to ridiculous lengths to justify him on a team).