I’ve had to downsize my immense collection of fishing tackle over recent years or I could have let you have something fit for purpose..
I’m down to one rod and reel pretty much for all my fishing now and will happily land
Bass
Mackerel
Pollock
Cod (etc)
Eels
Flatfish
Carp
Tench
Pike
Barbel
Bream
all using one of the lightweight Bass/Carp type rods that seem to be popular nowadays and a medium sized fixed spool Carp/Bass reel that will accept up to a 30lb mainline..
these are available most places in a range of prices catering for entry level budgets right through to pro (in a similar way to bikes) but I would suggest that your local tackle shop is the best place to ask..
(I got my first ever outfit as a kid from Argos which included a slection of floats and hooks and weights etc.. I used it everywhere with some success.. as a note of caution though I would recommend encouraging a cheaper hobby cos when you get the fishing bug it can very quickly get more expensive than other hobbies.. such as MTB for example!..)