Do you think these can be considered successors to Banks? Banks and Pratchett were the only fiction authors I have read for years, although I ought to add Cornwall at some point too. As both are dead I read no fiction at all.
Yes - in many ways the early Alistair Reynolds books are a potential Banks substitute:
It is worth trying to read them in the order of publications - starting off with 'Revolution Space' and 'Chasm City' especially.
But as I say the Cyber-punk Space Pirate later books are really not my cup of tea.
Asher is much more militaristic - he has the same focus on AI that the Culture novels have, and some great science, weaponry and tech but is much more about a massive series of interstellar wars. Asher is also very good at creating 'new' Aliens and his plots, although not that straight forward, are worth the time getting to grips with. 'Prador Moon' is a good starting read.
China Melville is a mix of fantasy and sci-fi - I started off with 'Perdido Street Station' and 'The Iron Council' - but 'The Kraken' is my all out favourite. 'The City & The City' got made into a BBC TV series (it was 'ok') but the book is a lot more subtle and complex.
How you replace Pratchett is a very difficult challenge.
TBF I think he was unique - the combination of comic observation, folk, legend and myth is something I have not yet found a substitute for. Lords & Ladies is my all time Pratchett favourite.
The Richard Morgan - 'Altered Carbon, Broken Angles and Woken Furies' books are also a very entertaining read - well thought out and an interesting concept.
The Netflix series are 'ok' but are only very loosely based upon the books and don't do the books justice at all.
I also tried the Alex Garland 'Annihilation' trilogy of books - this is a case where the film (another Netflix offering) is IMHO far better than the book.
The initial book is a great idea - the 2nd & 3rd are stretching the concept too far IMHO.
The David Brin 'Uplift' series is another interesting sci-fi read - 'Uplift Wars' is particularly good - but again it is worth reading these in-sequence - his idea of taking a current scientific/moral dilemma (genetic manipulation or 'uplift') and working it to its extreme is good - he is a 'proper' scientist rather than a pure creative author and that is a positive.
the 'Nova Swing' novel by M. John Harrison and the 2 other accompanying books are also a good read - more along the lines of Reynolds, but there is a 'nod' to Banks and even 'Something Wicked This Way Comes' by Ray Bradbury (a sci-fi classic) in there. I enjoyed these.
However, with Banks, Reynolds and Melville I can reach for them again and re-read them - even if there is a gap of a year or 6 months and I almost always find something new in them. With many of the others I've read recently I find they are inadequate imitations.
I hope that helps .... I'd be interested to get your feedback on any of the recommendations you follow up on and read.
Cheers
Mark