I've seen people do this before but I was just reading https://www.vlr.gg/413726/lxt-4 (more specifically Aayan's comment at #5) so I thought I'd give my input.
Here are the teams I thought up. Each team has players to fill all the necessary roles, including an igl.
🇦🇷: Saadhak nzr Klaus Dantedeu5 tinchoff (triple igl goes hard)
🇧🇷: heat aspas cauanzin pANcada Less
🇨🇦: FNS mada JonahP eeiu Marved
🇨🇱: adverso kiNgg keznit Mazino Shyy
🇨🇳: nobody ZmjjKK CHICHOO AAAAY Smoggy
🇨🇿: MAGNUM marteen Ambi Jesse Minny
🇫🇮: iluri Derke Jamppi hoody Polvi
🇫🇷: Scream K4DAVRA nataNk sh1n Killu
🇮🇩: xferro f0rsakeN xccurate Lmemore Monyet
🇯🇵: CLZ Meiy SyouTa Xdll SugarZ3ro
🇰🇷: Munchkin t3xture Karon Rb Meteor
🇱🇹: Boo MiniBoo ceNder nukkye hype
🇳🇱: RobbieBk hiro MAGiK brazy Apyr
🇵🇱: Buld kaajak kamyk paTiTek grubinho
🇷🇺: nAts Chronicle purp0 SUYGETSU Cloud
🇸🇬: Benkai, Jinggg, Deryeon, lenne, nephh
🇪🇸: Mixwell Fit1nho Quick koldamenta Guardy
🇸🇪: ShadoW Sayf Leo Zyppan Meddo
🇹🇼: BerLIN Nicc Yuicaw TvirusLuke YHchen
🇹🇭: cgrs Primmie sScary JitBoyS foxz
🇹🇷: MrFaliN Wo0t ReiNs Loita Alfajer
🇬🇧: Boaster waddle aNguiSt benjyfishy Lime
🇺🇲: valyn jawgemo zekken s0m leaf
I will update this as people respond (i.e. as people yell at me), whether that be changing rosters or adding new teams entirely.