Couple of neighborhoods others might not recommend. I’m offering them up because they are non touristy and I’ve explored both.
EALING;
Ethnically diverse. Non Touristy.
Easy access from Paddington Station.
Take a 12-15 minute train ride on a GWR train from Paddington to Ealing Broadway. You can use your Oyster. Exit the station and cross the road keeping the Shankee Pub on your left. Follow the path through the commons walking towards the small corner flower shop, turn left, cross over the railway overpass and you’ll find Ginger and Moore directly across the road from TK Maxx’s side entrance. Hopefully they’ll have put a sign up. In January they’d not yet done so. Good pastries, coffee and people watching from Ginger and Moore’s nearly floor to ceiling windows.
You can also tube to Ealing just takes much longer.
Or if into Pho and Vietnamese food then Pho Saigon is a must. Loved that place. Almost went nightly.
Lots of charity shops in Ealing and I enjoyed a nice stroll from Ealing Broadway to the venerable Drayton Court Hotel. Across the road from the Drayton is the cozy Cafe Leemo. Loved getting Snickerdoodles there.
The Haven Arms Pub was my local. It’s comfortable, traditional and Bella the black lab will make certain to say hello. Very quiet around 2pm. Would sit and read and catch up on emails!
There is a small but enjoyable Farmers Market is on Saturday. Opens at 9am.
By taking the tube from Ealing Broadway one morning enroute to Sloane’s Square I noticed a neighborhood that seemed interesting. On the way back from the Sacchi Gallery I got off at Turnham Green. Good choice!
Chiswick
Exited the station, turned left, admired the plants and flowers, walked under the overpass and meandered windowing shopping. Walked about 4-5 blocks to Chiswick High Road and meander some more. Nice lunch at Hare and Tortise. Very nice neighborhood.
Differing neighborhood looks to enjoy.
I too say meander through the Hampstead Heath. One of my favorite spots in London.