Couple of piece reports on a new build:
ZRace R700 brakes - $17
https://www.aliexpress.com/item/1005005921991538.htmlWeight: 379g
Nice budget alternative to 105 R7000 brakes and exactly the same weight. Similar style and function at about half the price. A side note on these, and this probably applies to R7000/8000/9100 brakes as well, but the reach is huge. These replaced mid-reach calipers on my Giant OCR and there was still a few mm of reach to spare - so if you have an old frame with mid-reach brakes, you might be able to get away with modern short reach.
Riro Racer R9 crankset - $39
https://www.aliexpress.com/item/1005007637681206.htmlWeight: 821g (50/34, 170mm)
Alternative to budget Shimano cranksets - design is similar to the Shimano non-series crankset (that's the FC-RS510 for 11 speed or FC-RS520 for 12 speed) with the solid, scooped out crank arms rather than the hollow arms of R7100 and above. Weight is slightly more than a 105 R7100 crankset (780g for 105, 821g for this). Finish is a lovely gloss black similar to Dura Ace R9100. Pairs nicely design-wise with an L-Twoo drivetrain. Shifting seems decent on the stand and up and down the street but haven't taken it out on a proper ride yet. Main downsides are that it's only available in 170mm, and the spider is integrated (i.e. no power meter options).
