Recommended training for after Dirt Destoyer?

Hi all.
I am coming to the end of the training program Dirt Destroyer, really enjoyed it and feel like i’ve gained alot. I do not have time for what the program Singletrack Slayer requires (work, family).

Dirt Destroyer suited me as it was 3-4 one hour sessions a week, so i’d like something similar if anyone can advise?

I have already done FTP builder.

Thanks in advace

Matt