ThousandMasks

I'm looking at making a Beam Rifle character to fit a concept I've got in mind, but I'm at a loss as to what to do beyond that. I'm looking for suggestions as to what Archetype and/or secondaries people suggest for use with Beam Rifle. I tend to play solo (my normal play hours are not the most popular play hours) but also jump into PUGs when I can, and I usually play Brutes or Scrappers, and have only recently branched out into Ranged concepts, but am really liking the idea of a Beam Rifle character. Thanks for your help, and sorry if I'm too vague!