Depends on budget.
You could go for some exige Bilsteins that would give you similar to what you had originally. Pick them up from Junks I imagine. This may lead to a slightly larger than desirable front wheel gap.
There are then the aftermarket options starting with Gaz Gold Pro's (GGP). I've not used or experienced them but from what I have read on the forums over the last 10 years, they're ok but a bit budget. Seems to be a lot of returns on them. Next up you have the price range of around £900. You have the Quantum Zeros and Nitron Street Series (NSS). When I did mine (very occasional road and track use) I went for the Nitron's but only because there was a deal on and they were slightly cheaper.
Next up are the Gaz Mono's, not to be confused with the GGP. Chris Redman uses these and has nothing but good to say about them.
After the 1k mark you move onto the more glamorous Nitron Club Sport and NTR ranges, Quantum Racing etc.
What is the budget you were looking to spend?
My experience of the NSS has been good. They are the second model so NSS2 and have adjustable rebound/damping https://www.elise-sh...9918860336fad96. They have been relatively fit and forget for me without any issues. You need to replace the mounting brackets at the front for the wider damper but these are included with the suspension. I added a stiffer anti roll bar at the same time. On the road they are stiffer than the original suspension I had but then that could be because they haven't done 80k miles. You can obviously wind the stiffness off and they are comfortable and not crashy. On track I wind their stiffness back up depending on how the day is going. The anti roll bar stays on the same setting and I just alter the stiffness of the shocks. I wanted something simple to adjust without spending the day under the car fiddling and have what I wanted. I'm sure spending more would get me a better shock but they aren't the limiting factor (the limiting factor is me). I needed to be careful when setting their height as the springs become loose at full droop if run too low.