When Ho-Oh is in a raid it has a max CP of 48276, This is a No Solo. When catching it has a max CP of 2207, and with weather boost, it goes up to 2759.
Alola Raichu is a Tier 3 raid boss with a max CP of 15380. Alola Raichu can be easily soloed. Alola Raichu are weak to Ghost and Dark type Pokemon.
Eevee’s Evolutions are in raid battles! Here are the best counters for the different evolution.