If you mean T5, then Plague Marines are tough and shooty, but at close range. They can't take heavy weapons, though you can give their heavy weapon squads Marks to get them some way to being full
PMs...
If you're happy with T4 and a decent armour, then lots of Marine variants would do. Shooty
SM, Noise Marines, Iron Warriors, Dark Angels, etc
Also, a Crisis suit-heavy Tau army would work out quite tough, and very shooty. It's just their regular troops that aren't so tough...