If you are new and are seeking progression then quoting karsuman.
List of black tier as recommended by seasoned players

Waifu Bracket: *Insert waifu here*
OP Bracket: B Iris, Leone, Cornelia, Aisha
Bracket 1: Nanaly, Rinne, Sophie, Esta, Kayou, Towa, Kikyou, Minerva
Bracket 2: Alice, Deine, Nezha, Rakshasa, Estelle, Grace, Sue, Matsuri, Frederica, Sarah
Bracket 3: Ingrid, Sybilla, Olivia, Moltena, Berna, Clissa, Dina, Amanda, Despara, Mikoto, Altair
Bracket Farne: Farne