As an enchanter/caster support, how are you supposed to deal with poke """supports"""?

I'm a support main (silver to gold), and while I play pretty much any designed-to-be-an-actual-support champion, I prefer enchanters. That said, Enchanters are pretty squishy and can struggle in lane against poke. What am I supposed to do, as an enchanter support main, vs high poke supports and "supports" like Brand, Vel'Koz, and MF? Senna is even harder to deal with than MF, as she has higher range, but both being long-ranged Lethality users makes them horrible to play against if you're not Braum or Leona.