Reliable international five-star right on Chunxi Road beside Taikoo Li — central shopping at the door, short hop to the clubs.
Grand Hyatt Chengdu (群光君悦) sits at 春熙路南段8号, directly on the Chunxi Road pedestrian shopping street and beside Taikoo Li — about as central as downtown Chengdu gets. It's a full-service international five-star with French-inspired architecture, a fashion-landmark address and spacious rooms with sweeping city views (some looking over the IFS rooftop panda).
You get the dependable Grand Hyatt package: a clutch of restaurants, cafés and bars, plus pool, gym and spa. It's not on Dongdajie itself, but the gay clubs there are a short walk or quick ride away, and you're walkable to Kuanzhai Alley too.
No specific LGBT marketing, but it's a mainstream global brand and a safe, comfortable central base for travellers who want shopping and transport on the doorstep. Luxury-tier pricing. (Note: I couldn't confirm a dedicated rooftop bar, so don't bank on one.)