Great — here are romantic Singapore hotels known for memorable skyline views, with a short note on what makes each special and a booking tip so you get the best view.

1. Marina Bay Sands — iconic infinity‑edge rooftop pool overlooking Marina Bay and the CBD; dramatic at sunset and night (excellent for photos, rooftop dining and cocktails). Tip: request a “Marina Bay” or “City view” room on a high floor. (mandarinoriental.com)

2. The Fullerton Bay Hotel Singapore — intimate luxury on the Marina waterfront with large windows, a rooftop pool/bar and direct views across Marina Bay and Marina Bay Sands; very romantic for evening walks along the Esplanade. Tip: choose a bay‑facing room or suite. (littletravelqueen.com)

3. The Fullerton Hotel Singapore — classic grand hotel on the bay with rooms that look across Marina Bay and city lights; good for couples who want historic charm plus skyline vistas. Tip: book a “Marina Bay view” room to capture the lights. (thetimes.co.uk)

4. The Ritz‑Carlton, Millenia Singapore — large windows and many rooms/suites with sweeping Marina Bay and CBD views, plus a luxurious spa and skyline‑facing Club Lounge (great for special‑occasion upgrades). Tip: book a Millenia or Club level room for the best panoramic views. (ritzcarlton.com)

5. Mandarin Oriental, Singapore — well‑appointed rooms and suites with floor‑to‑ceiling windows and private balconies on some suites overlooking Marina Bay; celebrated bars and fine dining with skyline views. Tip: consider a Marina Bay suite for a private balcony view. (mandarinoriental.com)

6. Pan Pacific Orchard — a newer “garden” high‑rise hotel with terraces and greenery that still offers elevated city and skyline sightlines; appealing if you want a blend of nature and city views. Tip: request a higher floor facing the city for dusk/night panoramas. (thesun.co.uk)

7. Andaz Singapore (near Bugis/Rochor) — stylish boutique luxury with skyline perspectives of central Singapore and intimate dining options; a good choice for couples wanting modern design plus city vistas. Tip: choose a room categorized with city/skyline views and ask for a high floor. (businesstraveller.com)

Booking tips (quick):

• Ask explicitly for a “Marina Bay,” “bay‑facing,” or “city/skyline view” room and confirm the floor when you reserve.
• For skyline photographs, dusk (blue hour) and after-dark city lights are most dramatic — rooftop pools/bars or rooms with balconies are best.
• Compare rates and availability across the hotel’s official site and major booking sites; consider a room‑ or suite‑upgrade (anniversary/honeymoon requests sometimes help the hotel add small extras).

If you’d like, I can:

• Narrow this to a specific budget (luxury / mid‑range / boutique).
• Check current rates and availability for specific travel dates (I’ll look them up).