Server
SurvivalDetailed idea description
I suggest expanding the list of items in jobs for which payment can be received.
For Miner add:
Sculk
Sculk Sensor
Sculk Shrieker
Sculk Catalyst
Calcite
Block of Amethyst
Cracked Stone Bricks
Mossy Stone Bricks
Chiseled Stone Bricks
For Fisher:
Many items exist for which no payment is given, especially when leveling up MCMMO you get different treasures like tools, etc., but they're not paid. It could be arranged that for all other catches not on the list, a fixed amount would be paid as for regular treasure catches (bowl, bone, tripwire hook, etc.)
Also, add selling raw fish to /shop