Some good ideas above, especially the parcel one. Bass works well in Asian style dishes too, eg with ginger and lemongrass. It’s quite nice if you are going to pan fry it to colour the skin initially, be careful not to over cook, find a recipe with timings and stick to it (a good shortcut is to heat pan with little oil/butter brown skin for a short time then put pan into oven at say 160 and finish the cooking – it only needs a few mins and keeps fish moist)
Based upon your request for what goes with, google “crushed jersey royals” recipe on bbc website – they work really well and are easy to do, then add some other simple veg – say wilted spinage.
Quite nice to have a sauce, butter based, but not too much
Enjoy