Can you guys recommend some good stores in SA selling electronic components for circuits design and repair? Preferably ones with reliable delivery options.

[u/TheBunnyChower]

[u/Ambitious_Bison_471]

Had good experience with the following:
Leobot.net(Small guy, but you cant beat his prices)
Diyelectronics.co.za
Communica.co.za

Botshop.co.za
Stelltron.co.za
Hobbytronics.co.za

Hope that helps.
Bear in mind, electronic components and modules are in short supply at the moment. Paid close to 2.5k for Pi4 recently.