I got a little obsessed with finding some period-appropriate carbon composition resistors. I tried various sources, even ordered some that turned out to be the more modern peanut-shaped style.
I eventually discovered that a Japanese company until recently made some quite satisfactory ones (until they were bought by Ohmite), and you could still find those via audiophile sources, as well as some NOS Allen-Bradley stock.
I got these via a Canadian company :
https://partsconnexion.com/resistor-carbon-composition/?_bc_fsnf=1&Watt=0.25W
This is great! I usually use eBay since you can sometimes find them in bulk for a good price.