After starting again on Platinum and taking forever to finalize and establish a team, I've finally managed to obtain four badges with a steady and balanced team.
Stella the Lopunny ♀ Lv. 31
Electra the Luxray ♀ Lv. 31
Apollo the Drifblim ♂ Lv. 31
Ceres the Gastrodon (W) ♀ Lv. 31
Tectonic the Rampardos ♂ Lv. 31
Regina the Vespiquen ♀ Lv. 32