>>1106415Accessibility is probably the only issue you'll have, but google should tell you which local waters are wheelchair accessible.
Most piers and jetties will be fine. If you're looking to fish a private water that's difficult to get to, ask the owner if they would consider making their water more wheelchair friendly.
There was a lake near me (Ireland) that had a number of jetties round the southern shore, each of which began about 3 feet out into the water. Someone asked if they would be willing to make a change, and now every jetty has a ramp connecting it to dry land, so all people can fish there. There's no harm in asking, and people/businesses can be surprisingly accommodating, especially for something which will allow them more custom.
Long story short, google to find places you can fish right now, and ask places that aren't accessible, there's a good chance they'll act on your suggestion and they could very well be an option in the near future.
A long handled net is worth investing in, and if you go for a telescopic handle, try to get one with as few sections as possible, for strength.
That's about it, aside from the getting to the waters edge, fishing in a wheelchair is no different to fishing without.