We're off to London just after the equinox. In order to continue my tradition of hyper-planning, I am working on researching which restaurants to seek out. We like everything from street food to ethnic to multistar places, except no tasting menus. All ideas are welcome.

No idea what your budget is but here are a few that I like
The Wolseley
Brasserie Zedel
Palomar is excellent but it is alot of small dishes that you need to & should order lots of, really good
Bibendum
Galvin at Windows
Berners Tavern
Ledbury
The Ivy
Le Gavroche
Petrus

Budget: Prefer (without drinks or wine) up to 50-60 per person, would consider one meal up to 100+ per person, no objection to under 20 per, all in £.

Sooo many:

Italian
Campagne + Jones
Ciao Italia
Chichettis
La Brasseria Milanese (Marylebone)

Indian/Pakistani
Lahore Kebab House
Tayyabs

Chinese
Gerards Corner

Fish and Chips
Olivers (Haverstock Hill)
Deep Blue

Chicken
Cookhouse Joes

Tea/Scones
Fortnum & Mason
Cafe Concerto (reasonably priced)
Sketch

Ok - now I am hungry!

Any particular area in London? do you want to have dinner close to your hotel? When - September of March? Some places you'd need to book way in advance.
Love The Palomar.
The Wolseley
Honey & Co for Middle Eastern food or Nopi
Berners Tavern
Core by Clare Smyth - fabulous but stretching your budget. 95 for 4-course lunch menu.
Thrishna or Gymkana for Indian
Caldesi, Marylebone Lane, for italian food

If interested in South African cusine try the BBAR next to Rubens at the Palace
One of my favorites.

I ate in a bunch of excellent restaurants in London in June. For descriptions, you can refer to my trip report:

A week of Chelsea mornings: Nikki's trip to London

I especially recommend Scully St. James’s as excellent creative cookery.
Medlar in Chelsea.
Merchants Tavern in Shoreditch

Thanks. Also liked Nikki's TR. I will make one also. Looking up all suggested restaurants so far. It turns out we'll be staying near Earl's Court (excellent connection to/from Heathrow), so good tube and bus connections also.

Any more?

Near the V&A Museum a wonderful little Italian eatery called Orsini. We also liked The Cote chain.

For street food check out yumbun.
Yum Bun - Soft steamed buns

They have a stand at Spitalfields Market and another at Giant Robot (the only two I have been to - they have others.)
Giant Robot is worth checking out if you are willing to go to Canary Wharf - for yumbuns and other street food.
https://www.streetfeast.com/visit-us/giant-robot/

The other thing I crave are the donuts at Bread Ahead in Borough Market.

Cinnamon Kitchen and Cinnamon Club: Innovative Indian
Modern Indian Restaurant In London | Cinnamon Kitchen
Indian Fine Dining Restaurant London | The Cinnamon Club

Eneko - Basque
https://www.eneko.london/

Don’t remember if ity meets your budget criteria but there’s always Gordon Ramsey’s in Chelsey, a three star restaurant. You can’t go wrong. The service is the best and the food is superb.

In Chelsea, we had an outstanding meal at Elystan Street recommended by friends who live in London. Beautifully prepared, creative dishes. Reservations essential.