Help finding a suit that feels confident but not flashy

[Mummen]

I have a couple of big meetings coming up, including presenting at a conference, and want a nice suit to wear but I cant find what I'm looking for. Suits I've had have been slim leg trousers with matching fitted blazer. It seems now that slim legs aren't in, especially not in matching sets.

I can't get on board with a very relaxed fit and don't know how to do mix and match trousers and jacket.

I'm 5ft 3, Size 12. I work in the civil service. I want to feel confident in what I'm wearing but don't want my outfit to make me stand out. Bonus points if I can wear flat shoes (brogues or loafers?).

Can anyone help me:
Find a traditional suit or
Style tailored trousers with a non- matching jacket?

Forgot to include my age and budget - I'm 40 and have up to £300 in mind.

My go-to for trouser suits would be The Fold, but may bust your budget if you want a jacket (a waistcoat might work ) https://thefoldlondon.com/clothing/petite-edit/

Or Margaret Howell on Vinted? https://www.margarethowell.co.uk/collections/women-trousers

I'm your height and my best fitting trousers come from Massimo Dutti or Cos. I'd say you'll get something good in either of those, MD will tend to be more classic, Cos a bit more edgy.

Flat shoes will look more modern with a suit than heels.

Have seen a lot of this look - perfectly fitting trousers with a crisp cotton or satin shirt in a matching colour, looks sleek and expensive, may be a bit too classic? (not necessarily this colour)

Massimo Dutti is over your budget too.

Hobbs has these slim fit.

https://www.hobbs.com/product/mia-jacket/0224-4502-7829L00-BLACK.html

https://www.hobbs.com/product/thurlowe-jacket/0126-4524-9045L00-NAVY.html

https://www.hobbs.com/product/ivy-slim-trousers/0225-8599-7829L00-NAVY.html

I’d have said Cos would be the perfect place for you. (I’m just under 5’3 and despite everything repeatedly said here I don’t find Cos fitting at all problematic. I’m accustomed to having clothes from any brand shortened or otherwise altered where necessary - if you have different proportions you could easily have the trouser hems taken up.) Something like this?

https://www.cos.com/en-gb/women/womenswear/coatsjackets/blazers/product/waisted-collarless-blazer-charcoal-1294893001

With the corresponding trousers.

Same height and I find Hobbs petite range works well. I bought a red suit from there last year and I’ve worn it loads.

Next do slim leg tailored trousers with eg this matching blazer, available in petite

https://www.next.co.uk/style/su807544/h29284

Thanks all! Hobbs petite or Cos look like they could fit the bill. Any time I've tried Hobbs in the past they have been too big in the shoulders but I didn't realise they do petite.

I'll also check out Next to have another option. I couldn't find that combo on the website before.

Interesting that the petite Adele suit they have in the soft yellow is the same one I bought in red last year. I get so many compliments on it and it’s really comfortable. I might buy it in this colour too.