I can recommend you some russian speaking musicians: "Синекдоха Монток", "Гр. Полухутенко", "Fleur", "ПТИЦУ ЕМЪ", "Созвездие Отрезок", "Порез На Собаке" and etc. They all different from each other!

And I can reccomend you midwest emo group (I think they from Argentina not sure) "mis sueños" (you can find on youtube: "mis sueños son de tu adiós - 2020/21 comp. [full album]").

You should definitely check out Souly and absent! It´s like german trap I guess???

                                                                    einschlafen unter sternen

Different but also german is Songs für Liam by Kraftclub (even better after oasis´reunion)

I recommend you a Brazilian band called Terno Rei, I love all their songs!

https://open.spotify.com/track/4pU5MiapjzzbqvXfKhcZT9?si=GuS_WyZOTjCgTZeLOwLfAw

https://open.spotify.com/track/6x1TTTokRumrQK4qqZONtG?si=hfhU6zJ8Rk-RxI_3qlvAAg

https://open.spotify.com/track/2FMbT1utC3bpnltjnccrNM?si=ImR2aCwbRE67tbB8kD-2CA

https://open.spotify.com/track/1SHB1hp6267UK9bJQUxYvO?si=8sVdSiwqRJOK-H033OMHOw

https://open.spotify.com/track/3KEnGyuImTqe7asrYW0kUv?si=gAUzfWjISL-L0pYHh4IXJA

Some recommendations:

Russian alternative music is very motley and can be like more lo-fi, such as Nautilus Pompilius, Автоспорт (Autosport), молодёжьвыбираеткосмос (Youth chooses cosmos), and it can touch on slightly dirty and taboo topics(like 4 "Позиции Бруно", "Птицу ЕМЪ", "Овсянкин", "Порез на собаке" and so on.)

Also in our country we have own branch of punk rock named Siberian punk. Probably the most important association with this is Egor Letov with his projects "Civil defense", "Egor and the Stunned". There is a rlly unique sound, may be have some noise chips.

P.s. As for my recommendation, I strongly advise you to listen Slava KPSS music(its a rurap, but i dunno can i call it rap) and his project СОЛОМА (straw). Avangard music, that kinda inspired by Civil defense.

German: i really listen only Lindemann, so idk

France: highly recommend Kumisolo - La femme japonaise, very melodious

maybe i forget something (like vocaloid scene), but i tried to share with my diamods^^

Talking about russian musicians, as the previous poster said, siberian punk is cool (it also includes such cool bands as "Коммунизм" (literally any kind of music, but mostly soviet-era folk, noise and spoken word), "Черный Лукич", "Цыганята и я с Ильича" (hellish psychedelic noise), "Промышленная архитектура" (post-punk), "Соломенные Еноты" and "Свидетельство о смерти" (post-punk))
Also there were such cool bands as "Химера" (psychedelic-folk-punk, there's also another band with that name, but it kinda sucks, so yeah, I'm talking about the one from St. Petersburg), "Телевизор" (new-wave, post-punk), "Поп-механика" (and just Sergey Kuryokhin's music, it's a mix of jazz, some kind of neoclassics and pure surrealism, topped with a thick layer of irony), also modern artists like "Конъюнктура" (beautiful art-rock), "Овсянкин" (hip-hop), "Гараж говна" (shoegaze/post-punk/lo-fi)

here some Polish recommendatitions!

Daria Zawiałow and Mery Spolsky have like cool songs

Jar it's a Polish folk band i really like

!!

If you like mcr you'll probably looove Solmeister, a Greek artist, makes these emo rap type songs (not all of them tho, similar to how my chem went through different styles)with many mcr references in there, fave songs of mine are selini (σελήνη = the moon), i teleutaia mera sti gi (η τελεθταία μέρα στην γη =last day on earth) , my chemical romance (Μάι κέμικαλ ρόμανσ, this one is literally his take on 3 cheers)

Wrote the names of the songs with the english alphabet, im pretty sure it doesn't help that much but oh well