The International Space Station (ISS) will again be transmitting SSTV images from the 22nd to the 25th of October on the 70cm band on 437.55 MHz (+/- Doppler shift), decode with Robot 36 mode, transmission 36 seconds on, two minutes off.
Submit your images to the SSTV gallery for event certificate.
Details of this and future SSTV events can be found at https://www.ariss.org/upcoming-sstv-events.html
Some antenna designs to help with receiving :
Turnstile antenna : https://alicja.space/blog/how-to-build-turnstile-antenna
Moxon antenna : https://antjab.wordpress.com/2012/06/07/a-moxon-rectangle-for-433-mhz/