hey, for starters id def watch some youtube videos in introduction to omaha etc because as others have mentioned this game is very complex to just give everything at once..
but key factors
1. any 4 connectors are great, 5-k ex - 2345 great to 10jqk, double suited obv give you more outs to catch flush with it but be careful you'll never get the nut flush with these kind of hands you're looking for nut str8 or atleast middle str8.
2. its nice to play axxx if the a is suited, but depending on the hand your basically only chasing a flush draw, if you can get a 77 10 a -10 same suit thats good cuz you can catch str8 draw flush draw or hit a 7, perfect scenario obv is aa910 imo double suited because you can catch 2 str8s without having to use your ace, draw for an ace , either suit your aces are suited too, or jqk-678 or maybe a nice 10109 flop .. lol
3. ;position is great in any poker game
but if your thinking about winning consistantly it will take a lot of practice, following basic strategy will help you turn profit in the begging and make the game fun but you'll have to figure out when people are bluffing just like any other poker game by feel if you dont have a great sense of feel just abc it with the hand chart i listed above and you'll make profit, but for ex you have aa10j and flop comes a26 2 diams u dont have diam draw, you pot guy calls, turn comes 10 non diam you pot again guy calls, position or no position you have to know if he is calling with 222 - 666 - or a diam draw, he is more then likely not going to draw a huge pot with 345 in his hand even tho iv seen it happen cuz all he has to have hit is any 3-4-5, is he putting you on trip aces? etc.. river comes a 3 non diam you pot or check and he pots or re pots you'll have to use feel in these situations and by knowing your player, is he a holdem player converting to plo or a regular, both have factors on if they are bluffing or not..
ex a regular can know you have trip a's and pot river thinking you are experienced and he thinks you will let ur trips go, this even helps if he has semi blockers like pocket 4s or 5s in his hand lessening the odds
u have str8..
lot more then this practice with a practical mindset.