there is no BEST way to find him, everything is completely random.
You can find Latios on Pokemon Emerald, Ruby, and SoulSilver.
You have to lock it up on the pokedex.
Your Home
after beating league champion in woods and water.
Legendary pokemon you can find in emerald are (without cheats & events) Rayquaza, Groudon, Kyogre, Regirock, Regice, and Registeel.You can get latios OR latias in pokemon emerald too.rayquaza,kyogre,grouden,jirachi,deoxys and i think mew
In the third generation game of Pokemon Emerald, Latios is one of two legendary Pokemon that will flee from the player if found. After defeating the Elite Four, the player speaks to their mother and this action sets Latios flying all over Hoenn. It can then be encountered randomly in tall grass.
You'll have to cheat(which is ashame) OR use a walkthough to find out
You can only get latias in sapphire get latios from ruby or emerald.
dude or dudet u cant get a latios or latios in Pokemon diamond/pearl. so stop asking by the way u can only get em in ruby emerald sapphire gosh buttox rox :p licky
After you beat the E4 go downstairs, your mom will ask you about the colour of a Pokemon on TV. If you choose Blue you can find Latios roaming Hoenn.
Have Flygon at level 45 and use dragonbreath on latios, latios will surely get paralyzed, the second time u meet latios, get a weak Pokemon to damage him until his life bar is red after that, find latios again then keep using an ultra ball until u capture him. note: save ur masterball don't waste it on latios
After you beat the Elite Four, Latias will appear randomly when you're walking through tall grass. Latios, however, can only be found normally in Emerald and Ruby.