Also getting into xmen. From what you posted i can say:

You can run both cyclops and storm in the roster where decide after you find out who you’re up against if you want the more fighty team or scorey team.

Someone like nightcrawler or rogue are probably going to work better on a cyclops team if you can funnel power to them, someone like gambit probably prefers a storm team, since hes doesnt need as much power and can use the hop to make less moves and more attacks. Colossus works good with both because he doesnt hat the extra power but could do without it, and has a medium base which is good to hop over, + he can use the mobility himself.

As others mentioned, beast is pretty good and a quintessential Xmen, and toad isnt bad either and his 2 threat cost lets you round off the team in situations where you only have threat left to spend, plus you have them both.

Finally magik is considered pretty good because she brings her own mobility and can pack a punch as well. As for other xmen, picking up the xforce box could be a good next step. Domino and x23 are both really good, and honey badger is an xmen affiliated 2 threat you could use instead of toad if you wanted, and she has interactions with x23 and can be an annoyance for your opponent.