Hi OP
I know Chingford well, I’ve lived round here all my life. All the roads you suggest are great, lovely houses around the high school, and the Ridgeway is kind of the ‘posh’ avenue of Chingford. People are friendly and there’s a good family feel and lots of amenities on Station Road - library, small soft play in Costa, mother and baby groups, fitness classes and am dram productions in the community hall, market sometimes on Saturdays, vegan cafe, craft cafe, independent bookshop, loads of great independent restaurants. There’s usually the Chingford Festival on the green every year too (COVID permitting!). Trains every 14 minutes to Liverpool St, gets you there in 25 mins, or 10 mins to Walthamstow on the underground.
Chingford foundation school is going through a rough patch at the mo, but you’ll be in the grammar catchment for the Redbridge grammars and I think the Enfield ones too. Lots of good private schools near there too, Normanhurst, Bancrofts, Forest etc. For primaries, Chingford C of E and Parkside schools are rated Good.
You’ll be spoilt for choice for nice places to run, Ridgeway park is situated at the top of the Ridgeway, and if you run towards King’s Head Hill, Epping Forest can be accessed from the side streets and then you’re straight in to the largest green space in London. There are proper paths so running in there is a dream. If you want something more structured with tarmac paths, Gunpowder Park is just a five minute drive from the bottom of Mansfield Hill and is a beautiful country park with many running and cycle routes. Chingford is pretty safe for East London too, I often see lone runners and walkers in the forest or parks.
I would say Chingford mount and south of that towards the billet is a bit rougher, but there are some great new craft brewery places that have opened near Blackhorse Road, I wouldn’t personally live round there but it’s a quick bus or train ride to hipster heaven if that’s what you’re after!
Best of luck with the house hunt!