Then you can do a LOT of shiny hunting there! There's dexnaving (kind of like pokeradar but WAY easier and is a little more luck-based), horde hunting (SUPER easy), masuda method (as mistress said it's also pretty easy), soft resetting for legendaries (easy, also luck-based but VERY time consuming), chain fishing (medium-difficulty, requires attention to catch the fish lol)
You can look up a video on all the shiny methods/areas in pokemon ORAS or on a specific one you want to do! I personally prefer horde hunting in ORAS and soft resetting, because I like to also do chain fishing or horde hunting on XY at the same time XD
EDIT: Yep! You need a FEMALE combee to get a vespiquen (but I don't think you can get combee OR vespiqueen in ORAS?)!
You can look up a video on all the shiny methods/areas in pokemon ORAS or on a specific one you want to do! I personally prefer horde hunting in ORAS and soft resetting, because I like to also do chain fishing or horde hunting on XY at the same time XD
EDIT: Yep! You need a FEMALE combee to get a vespiquen (but I don't think you can get combee OR vespiqueen in ORAS?)!
Found a shiny? Talk about it here!!