A classic of 1 to 6 or 2 to 3 buffered multiple.
The led show signal at input 1 (red for positive, green for negative).
Please note that the opamp model used is TL072. Accuracy will not let you drive many oscillators in perfect unison. No problem for audio / modulation / clock signals.
https://www.atonal.be/buffered-multiples/
This Module is currently available.
$56