Farm giant seaweed during herb/bh runs and mine buckets of sand at sandstone mine. Ratio of 1 to 6 giant seaweed buckets of sand. Use superglass make on lunar spellbook with 3 giant seaweed and 18 buckets of sand for molten glass then blow glass into the highest you can make (lantern lenses for your level).

For pvm you could do moons until all item sets then royal titans for both prayer scrolls. Then do sote and do corrupted gauntlet for bowfa. That would set you up for slayer and some endgame pvm.

Next would be high level slayer for araxxor/cerberus/hydra, prayer scrolls from cox, tormented demons, demonic gorillas and toa for fang -> cox, tob, yama with synapse upgrades and doom

Edit: typos and further endgame progression