And they literally hide messages/stories/and a universe in their tracks. Sometimes melancholic, gore, sometimes pop cause "it's the only shit who is selling good today" (I swear) They hate everybody and it's feel great. Each CD are a "stupeflip era" and it's the only group which i can say this without rolling my eyes.
cd -> The Hypnoflip Invasion
rap Tracks -> Stupeflip Vite !!! / La Menuiserie / Gem Lé Moch'
pop tracks (I swear fuck) -> Ce Petit Blouson En Daim

Odezenne :
The cool rap, the love rap, the intelectual rap. Powerfull lyrics here and when lots of their track save my relationship when I just have an argument with my wife. Just listen and have a taste. Maybe difficult lyrics for traduction cause ther is a lot of "puns" and words creation.
Cd : OVNI
Tracks : Saxophone / Chewing gum / Méli-mélo

Vald: Best proof you can sound like a "gangsta" rapper but just singing funny shit cause you know you'r only a white kid, sound aggressive but everybody know he can't be serious and some tracks/sentences have sometime a real deep meaning. I listen to him usually cause he know how to rap and make words beautiful or scary. (Some tracks are gore/very sexist careful with this material)
CD -> Agartha
Tracks -> Lezarman / eurotrap (videoclip ftw) / barème (videoclip guud)

Hyppocampe fou :
Ok here is the deal, I take a poet, dad, happy 24/24 Dude, and I push him to do some rap. Fuck it's sound awesome and it his, happy, simple with not big subject but can make everything cool with his skill and flow. Also all his beat sound like directly record in a Water world with ton of bubles
Cd -> aquatrip
Tracks -> aquatrip, H&M (song about Anal abscess... yes), Aquabadtrip

Java :
How, I heard you wanted FRENCH rap, cause they put a fucking accordion in this group E.VE.RY TRACKS and also, the little bonus : feminist-friendly tracks (in "le poil") Nothing much to say, it feel French cause it is, it feel Paris cause it is. I love them and they called their style "rap-musette" (musette is an oooold French music witch accordion.
CD -> Java
Tracks -> Sexe accordéon et alcool, Dieu, Le poil.

HERE IT IS ! have fun and be awesome has you always are. Bye witches.

@NaHO
Oh, and not to forget this video:
https://www.youtube.com/watch?v=uggrWRov0mg

Over and out...

@katsok thank you ! I will listen all this soon, for stupeflip yes their beat is just destroyed, and they had a very bad production since nobody want them in the music industry, i suggest you to listen there last cd StupVirus, the did a crowfowding who give them a lot of money, the sound is much better I think, but while it's more a "bye stupeflip" album I didn't give him in suggestion. ^^'

@NaHO
Oh, you will LOVE this...
https://www.youtube.com/watch?v=KyHWEU-QAsg

@katsok seriously east Europe have the best language for rapping, my ears thank you.

@NaHO
As far as production goes, take a look at Dječaci:
https://www.youtube.com/watch?v=p4FH8f_TKgM
Another example (no video there), this time halfway without the beat:
https://www.youtube.com/watch?v=290NSNO19VE
(there are lyrics included there you can put into google translate just to see the mean level of gangsta there)...
just thinking, but gonna listen to the rest of your recommendations...
Keep tooting...