You can get a *lot* of mileage out of Magic Initiate. You just have to be sure that the spells "scale" well. In another pbp game Udit has sleep as his level 1 spell, and it's become less useful.
Ritual caster though... no limit on the number of ritual spells you can cast.
True! though the choices I want are pretty un-optimized: mage amor, prestidigitation and maybe mending. But that's just an idea, and not actually a plan.
So we weren't allowed to discuss the builds before the game, but I'm guessing it is ok to discuss options builds now.
Apologies if this is in bad form. I really enjoyed not optimizing the party, and am enjoying seeing the pressures it is now applying. Thank you all for indulging in that.