My mid range usually consists of 3 slurry types on a fine&hard base. For example:

1. botan, tsushima, then tomo nagura

2. tsushima, yellow lake, then tomo, or

3. dragons tongue, yellow lake, tomo, or

4. Coticule and nothing else

Further to that I could mix in a thuringian slurry somewhere in the higher mid range (pre polish), or mix in some very coarse nagura in the lower range after bevel set (such as lyo - but careful, there are mixed reviews of this one and I think I just got lucky with mine). I wont mention various unknown stones I find laying around in the nature

It gets a lot more fun when using the naturals. Sometimes this leads to inexplicable results. This is why a loupe is more-less essential to me. Sometimes the edge falls apart, too (check out the content linked above)