I'm not sure that particular combination is represented in this group of earphones.
My feelings on each as succinctly as I could put them are:
BGVP DM5, - quite mid forward (particularly upper mids in the vocal registers). These lack a bit of the bass extension of others here but do have a nice low rumble when called upon, but the mid-bass is way less spectacular than the K3 or the F9. Very comfortable and a very pleasant signature without adjustment.
Plus - great sound signature out of the box without some stray peak in an odd location.
Minus - Mid bass is less refined than others on this list.
Magaosi K3 - A full step above everything else on the list. These have a coherency to their sound that just isnt normally found at this price point and a really balanced signature. They are mid forward but are just shy of having the bass punch you are looking for. Not that they are bass light, just that they are well in proportion to the rest of the signature and couldnt be considered bass heavy.
Plus - Best signature I've heard in a sub-$200 in ear. Draws comparisons to the LZ-A4 and the SWIII.
Minus - cable could be a bit better but at $100 - this is nitpicking
Fiio F9, - Similar to the Zs6 in sound with a prominent treble spike (albeit at a bit lower frequency so even more annoying at times). Reacts well to EQ and has a very listenable shallow V shaped signature. Not as mid centric as the K3 or DM5 but a comfortable long session user once tuned a bit.
Plus - Well composed sound signature with good balance of mid to bass without a pronounced mid-bass hump.
Minus - 7kHz spike really cannot easily be ignored and must be adjusted for.
TFZ series 2 - similar to the DM5 in that the sub-bass is not super extended, but it does have a bit of rumble to balance the profile out. Mids are the highlight and it does vocals with an ease that isnt present in the Zs6. Treble is well behaved but again not super extended and it loses a bit of crispness on cymbals due to the roll-off at the top end.
Plus - Vocals oriented sound signature good for long listening sessions
Minus - could use a bit more bass and a bit more extension on both ends
For sake of fair comparison;
Zs6 - Very good bass extension but well proportioned to the rest of the signature, a slight mid-bass hump that bleeds into the lower mids although not nearly as pronounced as a lot of other budget earphones. Upper mids take a back seat to treble which is over-stated and can become sibilant without some tuning efforts.
Plus - Extension on both ends
Minus - control at the upper end
For me the order would be K3, DM5, F9, TFZs2, Zs6 if I were purchasing them today.