I would suggest just getting a laptop and nice external interface (keyboard/mouse if you prefer, nice monitor) + remote server. I bought a desktop + gpu setup back when I started my masters, but I use it shockingly little for work. The type of work that a single gpu + local machine incetivize are usually against good scientific and experimental practice. You dont really want that running jobs during the day.

As for specific cloud reccomendations, I have none. I just use what is available at my institution.

To be honest, I won’t really miss any specific subreddit. Many of the niche and hobby ones that I cared for, I would not subscribe to, because of the low-effort posts.

I will miss site:reddit.com most of all.