Hi Kay,
Welcome to the forum! The obvious choice for you would be the rivers close to home such as the Tawe and the Teifi, then there's the Neath and Glyn-Neath clubs (Glyn-Neath stock their stretch) Also some club and day ticket water at Llandovery; and just a bit further there's the River Usk, Two clubs with open access to joining at Brecon town waters. Then there's the MTAA they have lots of water on offer, River Stream and Reservoirs. You may find what your looking for with the WUF?
The Wye and Usk Foundation | River Conservation & Fishing
Hope this helps you find some fishing that suits you!
Regards
Mostyn