I'd consider growing culantro/sawtooth coriander as an alternative to common coriander.
Depending on what migrant populations you have in your region you should be able to find this if you go looking where SE Asian grocers or markets are, same for Mexican grocers or markets. It actually grows better in partial shade. Just make sure that you know how to identify when it's bolting and remove those stems as they emerge. Culantro is also a short-lived perennial so that's kinda neat because you aren't bound to a growing season with it.
I would also consider kratky hydroponics for small scale gardening on a windowsill.
Idk how basil will go because it sounds like you aren't getting much light. If you aren't getting enough light you might want to consider investing in some grow lights. You don't need much space to have a small set up - people often use cheap garage shelving or those wire shelving units. You can also use floating shelves to make something that is more aesthetically appealing like this set up:
https://www.reddit.com/r/Hydroponics/comments/ulvrip/kitchen_lettuce_shelves/
Basil is easy to propagate so you can effectively have perpetual basil:
https://youtube.com/shorts/HUnW-9CGj0c
There are more in-depth guides for how to do this that are out there too.