I’ll add one more recommendation for those visiting Saigon/HCMC. We booked private tours both days with Tours by Locals, with a tour guide named Thien. She is fantastic.
Thien’s tours take you to the non-touristy version of both the Mekong Delta and the CuChi Tunnels. And yes, there is a touristy place for both of these, which is where the ship excursions go. But Thien and Tours by Locals take you specifically to the non-touristy areas.
You get the same activities on the MeKong Delta, but you won’t be accosted by hawkers, and you probably won’t see another tourist.
at the CuChi Tunnels, you’ll see a whole different side of Vietnam, including a lot of propaganda.
Thien has an incredible upbringing with a father that was a high ranking communist party official and former Vietcong, and a mother who sided with the south and loves the United States. This view of both sides of Vietnam is eye opening.
I cannot recommend touring with Thien highly enough. She is friendly, enthusiastic, absolutely loved what she does, and will show you a side of Vietnam that you won’t get from most your guides.