Here are two chargers I have older versions of which I swear by.
51.5W 5 Port w/ Quick Charge 3.0
Most versatile IMO because of the long cable so it'll fit anywhere without a chunky input.
Not as great because of the whole body going into the outlet so you might be limited on where you plug it in. The trade off is you get a more compact, less hassle (Like wrapping up the cord) package.
For batteries I believe this is the best
It has USB-C input which a lot of battery packs do not so you're future proofing yourself. High capacity and decent charging speed. Weight isn't too bad for what you're getting.
Here are two earbuds I'd recommend that last a long time, comfy, and sound great.
Slim+ and Spirit Pro
I've used the Slim+ and they were great but gave em away when my uncle needed earbuds.
Lastly, since you own an iPhone and Pixel, I would highly recommend Powerline II 3-in-1. It has microUSB, USB-C, and mfi certified lightning. That'll charge your pixel, iphone, earbuds, and battery pack with one cable. Only issue for me is I want a 6ft cable, they only make 3 ft.