OK guys question, is Top still popular?
Top is in a weird place. Rammus and Nautilus, both considered as Jungle picks, are now played in the top lane. But right now, the meta favours tanks with good teamfight capabilities or hard carry champions that can split-push.
For Top Lane tanks: Poppy, Nautilus, Rammus, Malphite
Carry Top Laners: Graves, Fiora, Quinn
And there's Trundle, who is a mixture of a Tank and a Carry. Fiora is getting nerfed next patch, which might hurt her really hard. Quinn is getting some slight nerfs (long cooldown on Q and blind reduction to 1 second), though she'll still be a massive split push threat anyway.
There's also Pantheon, but he got nerfed, so I don't know what the current situation is like for him.
For a support main, transitioning to Top Lane is fine because a lot of tanks are in the meta and it's still a very AD focused one. Though it might shift over to the mage meta once the mages rework hit and a lot of these tanks will fall out of flavour.
Still, I recommend Nautilus, Poppy and Rammus.