Thanks all this is helpful.
To summarise:
The truly in fashion thing at the moment are dad trainers, which I’m not quite fashion forward enough to wear.
Converse are either fine and go with everything or terribly dated 
Superga are still ‘in’ albeit a bit ubiquitous now.
new balance might be a good affordable compromise between dad trainers and plimsolls.
As it is, I really like the Gola ones linked above -thanks to whoever put that up, I might just get them and then a pair of the sale supergas in the m&m link (again, thank you to that poster) if I can find a pair in my size in stock.
To the person who asked if anyone says ‘trendy’ these days? (unless middle aged a cardinal sin itself, imagine). Answer: Not really in real life, however for the purposes of this conversation everyone knows what’s meant.
Thanks all off to spend some shoe money 