Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ

So I've been torrenting for over a year now (just in time to get attached to RARBG and get my heart broken) and mostly loving it. Now that I have access to actual high quality files I've been looking to improve my home setup. I was wondering what setups people have and what I should aspire to.

In the old days I would just stream with chromecast and then I got into the Laptop to HDMI cable setup but now I know the joys of a 5TB hard drive plugged directly into my TV and I don't think I'll ever go back. My TV isn't all that big (only 45") and it's only 1080p. It's an older TV too so it can't play HEVC files which limits what I can play in this setup. I'd love to be able to access the 4k HDR content out there. Does anyone have any advice on what kind of TVs are out there that would work well with this or other potential setups?