Dex based valor bard, should be fairly tanky with sword and board, be an excellent rogue, and add more magic. A one fighter dip gives you a fighting style and con proficiency, which is rather nice. Defence or dueling FS are both good choices

Perhaps something like variant human:

13/16/14/8/9/14, feat observant to bring wisdom to 10 perception +5

Skills: acrobatics, insight, perception, thieves tools (criminal background or custom), etc etc?

I think that’s about a 19 starting AC with shield and protective FS, 18 with dueling.