Need recommendations for what to buy for new home office!

I now go to the office 4 days a week and when I’m there I have a monitor, and now when I work from home I don’t know how I ever did it without a monitor, especially as a designer. I have more space now so I’m trying to finally make a good setup for myself. I need things to work with both Mac and PC. Idk my exact budget for all these things but it’s not huge, so not looking for the BEST quality, just not total crap.
What I’m looking for:

– Monitor, probably at least 27” and not awful screen quality for my design work. This is the most urgent need for me.
– Keyboard that can be used with both Mac and PC. Does this exist?
– Mouse. I haven’t used one in forever tbh but I have carpel tunnel and hypermobile fingers and it’s just dumb for me to use a trackpad.
– Docking station to connect laptop to monitor so I can use both screens.
– Less urgent – wireless charging stand for my iPhone.
– Anything else misc I’m not thinking of! Maybe cable management etc

And any recommendations on where to get these things on sale? 😅 TIA!