At click & surr  there is  sensationally cheap vouchers for the development of Super 8 films  together with  a 2K scan of excellent quality. Here is an example for Kodak Vision3 50D. You can find the voucher for development and scanning here:

For color negative films Kodak Vision3 50D, 200T, 500T: https://clickundsurr.de/products/3a_entwicklung-scan-super-8-farbnegativfilm-kodak-vision3-d-eu-ch?_pos=1&_psq=entwi&_ss=e&_v=1.0

For Kodak Tri-X black and white reversal film and Kodak Ektachrome color reversal film: https://clickundsurr.de/products/3b_entwicklung-scan-super-8-farbumkehrfilm-e6-ektachrome-100d-oder-sw-tri-x-d-eu-ch?_pos=2&_psq=entwickl&_ss=e&_v=1.0