What hybrids can I create?

Thinking of buying an incubator and creating some "Hybrid" chickens.

Right now my hens are as follows
White Leghorns (Only white eggs i get)
RIR
Black sexed link
speckled Sussex
Red Sexed link
Barred Rock
Buff rock
Black Austlorup

And for roosters i have
Black Austlorup
Speckled Sussex
Lakenvelder
Barred Rock

Any interesting combos i can make??

And how long does it take if i seperate a few hens from the current roosters till there "Un fertial" and i can re introduce and specific rooster?


Thanks!