I think now it's time for me to chime in.
I have basically all the FOTMs, so here is the breakdown of them all
$200-300
It's a tie between LZ A6 and Audiosense T800, and they both sound equal to, or better than FH7, DK-4001, IE 400 - 500 Pro, Andromeda, IER-M9 depending on your music tastes
LZ A6 - The temperamental king
Pros: excellent treble detail and extension, tight and strong subbass, versatility, excellent wide soundstage (not tall) ==> technical abilities
Cons: some sibilance coming with treble extension
Remedy: copper cable, small pieces of foam inside the 10-40kHz filters
9/10
Audiosense T800 - The proper queen
Pro: excellent mid detail, strong and fun bass, safer treble than A6
Con: bass can feel slightly slow
Remedy: pure silver cable, tip rollings
9/10
$150 - 200
I don't own anything in this range, but auditioned IKKO OH10 (8/10) and Moondrop KXXS (7.5/10).
OH10 is better and quite good for the price, although both OH10 and KXXS don't give me the wow. They don't sound better than the $50-150 offerings in my collection (otherwise I would buy them)
$50 - 150
The most crowded arena
BQEYZ Spring 1
Pros: detailed, warm, excellent mid, good bass, holographic soundstage
Cons: slightly thin treble
Remedy: pure silver cable, nozzle screen removal, tips rolling
8/10
Shuoer Tape
Pros: hi-mid and high detail, strong and fun bass, wow factor
Cons: slightly shouty with female vocals, the 3kHz peak sometimes masks details in some areas
Remedy: Ostry OS200 tips
7.75
Sennheiser IE 40 Pro
Pros: excellent mid detail for DD, warm mid, very wide soundstage (not tall though)
Cons: subbass roll-off, slightly thin treble
Remedy: copper custom cable, tips rolling
8/10
NiceHCK NX7
Pros: very detailed, tight strong bass, wide soundstage
Cons: 8 kHz fatiguing peak
Remedy: 2 pieces of foam inside the nozzles (just take out the screens using a needle)
8/10
KBEAR Hi7
Pros: very large soundstage
Cons: the 3kHz peak sometimes masks details in some areas
Remedy: haven't spent much time with this yet
6.5/10
UiiSii BA-T9
Pros: the largest soundstage of all my IEMs, very detailed
Cons: flat bass (not a con for many), slightly sibilant
Remedy: copper cable, foam tips
7.75/10
NiceHCK F3
Pros: quick attack/decay of planar
Cons: flat bass, 8kHz fatiguing peak
Remedy: copper cable, foam tips
6.5/10
HiSenior H6
Pros: warm mid
Cons: subbass roll-off, treble roll-off
Remedy: haven't spent much time with this yet
6.0/10
Sub-$50
Semkarch CNT-1
Pros: excellent detail with no strange peak, very fun, strong subbass with little midbass bleed, quick for DD
Cons: 2 pairs of stock filters sound bad
Remedy: LZ A6 filters (red ones)
7.5/10
Blon BL-03
Pros: natural, smooth sound (Harman style with less 3kHz peak)
Cons: treble roll-off, not as quick as CNT-1
Remedy: pure silver cable, KZ star tips
7.25/10
TRN V90
Prons: detailed with no sibilance, strong fun bass, separation
Cons: slightly slow bass, thin mid
Remedy: cable and tips rolling
7.25/10
KZ ZSX
Pros: smooth, flat sound with slightly raised sub-bass
Cons: not as detailed as V90 with less separation
Remedy: sold them
6.75/10
I-INTO i8
Pro: smooth sound, flat mid
Cons: treble roll-off, springy cable
Remedy: tips rolling
6.5/10
UiiSii CM5
Pros: Harman style sound, detailed treble
Cons: slightly slow bass
Remedy: tips rolling
7/10
Ren Teng ix-12
Pros: strong bass, detailed
Cons: slight mid-bass bleed, fit problems
Remedy: wide bore tips
6.5/10
****
Pron: smooth sound, good soundstage
Cons: fit problems
Remedy: none
6.5/10
Sony MH755
What can I say, just buy them.
Some other IEMs I have sold: AKG N5005, KZ ZS10 Pro - ZS7 - ZS6, TRN IM1 Pro - IM2 - X6 - V20, Meizu Live, Kanas Pro, Tin T3, FLC 8S, NiceHCK N3, CCA C16, BGVP DM6, Sony XBA-A3 - XBA-300 - EX800ST, LZ A5, BQEYZ KC2... Most of them are not bad, some are excellent (N5005, FLC 8S), but I love to experience.
Hope this will help you with your 11.11 purchases. I'm feeling empty, cause I have nothing to buy now.