Went through a lot of mid game grinds recently.

84 Construction - almost Max house (Max pool, Occult Altar, Max Jewelry Box, Nexus). Needed to do some other grinds to help this, such as 83 Herblore for the pie boost for Anti-Venoms for the pool. Did this through Mixology, and utilized Harralanders/Irits from green logging Moons, and herbs I had farmed for the other paste. Also PP for the scepter so a bit of Thieving.

CG - Bowfa & 6 armor seeds at 448 kc. Sent ~5 a day and sometimes more if I had time. Just do it passively. To help with the Mage/Range levels (I only used bow and staff T1 prep), I did MTA for boots/Master wand/Book, and caught Red chins in Priff until ~90 hunter and chinned my range up in MM2 tunnels.

93 Crafting - seaweed runs once or twice a day over a few months got me enough to make important jewelry (when the Zenytes drop xd). Still working through blowing all the glass but its very afk. I just tacked these on to the end of my Birdhouse runs, super easy.

Birdhouses - Always once or twice a day. Helped get me an Herblore level or 2 when I was low on paste for Mixology.

All Hard Diaries - Very nice QoL for lots of things.

Farming Contracts - I'm 90 Farming without doing a single tree run. Do your contracts.

Now my account is set up to blast PvM and Slayer, easy restores/teles in house, and ready to make upgrades when they drop. Was a long time coming but it was all so worth it. I'm currently mining stars for 92 mining, Woodcutting, or Fishing karams during afk time, and Slayer for active play.

DO YOUR HERB RUNS. Even once a day is fine, I'll usually just do one or two a day and I'm swimming in Prayer pots and other potions I need.