The Build I'm Using Before I Have a Razer One

I've got a plan going for a new PC build that revolves around the Razer Tomahawk ITX case and the Raptor 27 144Hz monitor. I'm not into AAA titles or huge new releases, since I don't really have much time during the week to play games, especially not competitively, so I won't need much graphical power or any RTX type stuff for it, as the only game I own that would take advantage of anything that powerful is Borderlands 3.

Anyways, here's the build I've been using for almost a year now:
AMD Ryzen 5 3600X
AMD Radeon Sapphire PULSE RX 5600 XT
Corsair Vengeance LPX 16GB (2 x 8GB) DDR4 DRAM 3200MHz C16
Corsair RM 550x PSU
ASUS TUF Gaming B550M-PLUS AMD AM4 motherboard w/ Wi-Fi 6
Corsair Force Series MP600 1TB Gen4 PCIe X4 NVMe M.2 SSD
DIYPC DIY-F2-W White SPCC Micro ATX Mini Tower Computer Case (with WAY too many stickers!)
(don't ask me what the case fans are, I don't even know, I just know there's two Noctua 120mm ones in it)

and as for peripherals,
Razer Kraken Tournament Edition Wired (Green)
Razer Mamba Wireless Gaming Mouse
Razer Cynosa Lite Gaming Keyboard
Razer Leviathan 5.1 Channel Sound Bar and Subwoofer
ASUS VG245H 24 in. 1080p 75Hz 1ms Dual HDMI Gaming Monitor w/ FreeSync

Built it up last year when a lot of it was on sale, and I'm glad it worked out then before the whole chip issue we're having now. If anyone has any suggestions on what to put into that Razer ITX build, I'm trying to shoot for something that can put out 1440p and/or 120+ FPS so I can optimize the monitor's output, so whatever you guys think would work (that doesn't go too overboard, remember I don't game too hard, usually just Team Fortress 2 matches, so FPS isn't exactly a concern), I'm open to hearing it!