Oof, I don’t know if I want to recommend anything I’m interested in as it cost lots of money to really enjoy these hobbies.
I guess at the base of it, my biggest hobby is generally upgrading every aspect of my day to day life.
Building PC’s
I’ve got 3 gaming PC’s in the house (wife’s, mine, and another for the tv with steam-big-picture) and also an Unraid server for media.
Desk Setups
I have 2 separate desk I put together. One for work and one for gaming. Both desk are wood countertops bolted onto sit-and-stand desk frames.
Work desk has a 34inch ultrawide. I also have a Herman Miller Logitech Embody which has helped my back immensely.
Gaming desk has a 38inch ultrawide which is awesome for gaming. And I have a Herman Miller non-logitech Embody. There are some subtle differences in how they feel and I need 2 chairs because I sit a little differently if I’m working or gaming.
Audio
I fell into the audio trap for my gaming and work desk partially thanks to r/headphones.
Headphones wise I have:
Sennheiser 599SE - At my gaming desk
AKG K713Pro - These were for my gaming desk, but I don’t like them as much as the others. My ears touch the driver which doesn’t feel good.
Drop 6xx - At my work desk because I listen to the most music while working.
Amp/Dac/Mixer:
JDS Atom Amp - work desk
Schiit stack (Modi 3+ / Magni Heresy) - gaming desk; I just got these so I’m testing things out.
Mackie 8 channel mixer - at gaming desk because I like using physical sliders to adjust gaming, music, discord instead of software.
RE320 dynamic microphone
Everything above has been collected over the last 4-5 years or so.
Oh also OP if you made it this far down, check out twitch streams for a “board game” called Blood on the Clocktower. It’s a social deduction game you can play in person, but the community built a pretty comprehensive web-based tool to play online. My wife and I watch the streams every week it’s a lot of fun. She plays in some of the games too, I mostly just like to watch.