Just off Trinite, in the Place du Chatelain area you’ll find a pink neon light bar called Oeno t k, a trendy wine bar (enoteca in Italian) that is quite popular among Brussels expats and Chatelain fans. The bar serves wines and the offering of wine by the glass changes on a weekly basis, with wines from all regions of the world.
The ups are that you get to taste the wine before deciding if you want the whole glass, and that the atmosphere is laid back (of course, keeping in mind that it is Chatelain and people expect to see and be seen). The downside is that the bar is quite small, so seats are hard to find, and that they don’t offer any complimentary appetizers, like they would in an authentic enoteca for the aperitivo, which means that if you want to have a couple of drinks and some snacks you’ll end up paying around EUR 20-25 per person.
It’s an ok place, but I’d much rather go to the less well-known, less wanna-be-hip and much more authentic Piola Libri.