Hi @CiaoBob,
Nice! Glad you liked HP Pho Ga.
For something new, perhaps a bang-bang at:
Pho Quang Trung (also in the Chicken Pho post I linked). It was a very good bowl of Chicken Pho, with the bonus of Chicken Offal (free) if you want (Chicken Gizzard, Heart, etc.).
And then nearby, you can get a bowl of the amazing Beef Noodle Soup (Bun Bo Hue) at Ngu Binh (which IMHO is so much better than regular Beef Pho).
Just a thought.