I've been quite happy with the AnkerWork S600[1], which I bought a couple years ago through Kickstarter. I don't know if it's the same chip, but they advertise a "professional NPU", and I find the voiceprint-based ambient sound rejection works very well. I can literally have my crying child in my lap and the other side of the phone call can't hear him.
I left Google to spend a year cycling with my partner from Alaska to Argentina, and couldn't recommend it more highly.
I strongly agree with other comments about having some structure/mission to your experience. I'm sure the need for it varies from person to person, but I know that I would have gone crazy or felt guilty for wasting my time if we had just been hanging out and drifting from one tourist hotspot to another, as seems to be popular on e.g. https://en.wikipedia.org/wiki/Gringo_Trail.
Having a theme or purpose, even if it's totally arbitrary (like "let's go from the top of the Americas to the bottom, by bike!") was definitely important to me to maintaining a positive mindset and achieving a satisfying experience.
[1] https://us.ankerwork.com/pages/a3319-s600-all-in-one-speaker...