Repeat until the combee is female (this may take a while since. Also worth noting is that as of gen 8, a level 100 pokemon can still evolve if you use a rare candy on it. Below are the evolution charts for all pokémon currently in the game data along with the amount of candy required.
Lily Mo Sheen HawtCelebs
#139 solosis psychic #140 duosion psychic #141 reuniclus psychic #142 combee bug · flying #143 vespiquen bug · flying #144 emolga electric · flying #145 heracross bug · fighting
(pokémon not yet available are listed here at the bottom.)
This even extends to the cases of male combee and male salandit. Pokédex entry for #764 comfey containing stats, moves learned, evolution chain, location and more! Pokédex entry for #416 vespiquen containing stats, moves learned, evolution chain, location and more! Btw it is possible in swsh to turn a male salandit/combee into a salazzle/vespiquen, but the game is hardwired to make salazzle/vespiquen always female,.
Pokédex entry for #669 flabébé containing stats, moves learned, evolution chain, location and more!