What assistance do you need? Tickets? Times? Carrying your luggage?
Tickets, times and general German train information you can get in buckets from the experts here - Russ, Lee, Sarah, and a few others.
Carrying the bags for you, not so much.
Use the DB train website or app (good app to have on the phone during the journey to).
https://www.bahn.com/en/view/index.shtml
You can catch
Strasbourg dep 08:31 ICE 9571 Intercity-Express Direction: Stuttgart Hbf
Subject to compulsory reservation (Strasbourg --> Karlsruhe Hbf), Bordrestaurant
Stuttgart Hbf arr 09:49 platform (Gleis) 6
Transfer time 10 min.
Stuttgart Hbf dep 09:59 Playform (Gleis) 11 IC 2162 Intercity Direction: Karlsruhe Hbf
No food or beverages
Vaihingen(Enz) arr 10:14 Platform (Gleis) 7
Total time = 1:43.
or (without formatting)
Strasbourg dep 09:11 TGV 9561 TGV Direction: Frankfurt(Main)Hbf
Subject to compulsory reservation , Bordbistro
Karlsruhe Hbf arr 09:52 4
Transfer time 13 min.
Karlsruhe Hbf dep 10:05 10 IRE19037 Interregio-Express Direction: Stuttgart Hbf
Vaihingen(Enz) arr 10:40 2
Similar at 10:52 and 12:46.