What to wear for my 40th

[doubleshift]

I don’t know where to start. Party at home with 60 guests. No dress code but most people will make an effort.
Thinking maybe a jumpsuit but are they a bit frumpy?
I favour navy or black or possibly rubys/reds. Not adverse to Vinted but searching is so hard.
any ideas where i can start the search?

It really is easiest if you give an indication of your budget …

Medium-low budget, I’d look at something from here:

Realisation Par dresses

Alternatively this whole outfit would be my idea of the perfect hostess wear:

Essential Antwerp dress

Probs up to around £300.