I had an interesting idea for a ZZ+ Roux mix.
this is to make the most fluid method ever, because ZZF2L is really fluid, but the Last layer is just as unfluid as CFOP.
I like roux's last steps, CMLL and LSE, but the blockbuilding is a little less fluid(lookahead is not as good as ZZF2L)
so what I did was this:
step 1:EOUnline- this is an EOline but with either A)2 U layer edges instead of line or B) place the UR/UR edges in the line instead, to make a really fast last steps
step 2:ZZF2L- because the line is a psuedoline this looks a lot more like F2B+EO, but treat it like ZZF2L.
step 3:COLL-Either influence into a shorter algset or use full COLL, either way, not too bad alg-wise.
step 4:finish with a kind of LSE-not really an LSE, but based on your EOUnline choices, it could be:
A)4b and 4c
B)do an M2 to solve UL/UR and then do 4c: because of how it starts, you can use BU recog right at this point, right after COLL.
maybe not good movecount wise, But I think that if we are looking for the most fluid method we combine the two most fluid things anyone has come up with yet: ZZF2L and LSE.