Consider a Zoom G3 or B3, any version. You can load up six effects per patch. They can ALL be delays if you want, reverse, modulation, etc. I use my old G3 after my B3n for space/ambient/chorusy effects only.
Sometimes I run this into a Boss RC-300 looper, which also has effects if I want. I can go crazy with that lot.
The Zoom boxes are great value imho. You’re right about the Flashbacks, they are very good but a bit polite.