Replacing shock absorbers

[pachanga231]

One of rear shockers is leaking on my estate, its a executive style which are factory lowered.
Obviously ill be getting both shocks replaced, question is what brand should i go for. ECP brands or something different and what's the approx costs? I know there will be cheaper makes out there via independent motor factors but wanted something quality that im not having to replace a year down the line.

Also when replacing shockers is there any other suspension part i.e top mount that i can check for wear that's worth replacing at the same time?

TIA

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