going back to my situation as a lyric contralto profondo, finding songs that flatter my voice has always been hard because baritone songs generally need a bit more heft behind them than I can manage, but tenor songs require covered head voice, a technique I am physically incapable of (only T-puberty vocal types can cover). I've been increasingly finding that the solution is to raid 18th century "tenor" rep because that's what flatters a deep but lightweight chest voice