I think the next step is ventilation / exhaust system along with humidity control.
Don't get just humidity control. Get one that does both heat and rh. I have one that uses a bathroom humiduty sensor and a 120/240v heat/cool thermostat wired on the cooling side. Can buy a pre-made combo unit for less than building your own like mine but I'm an analogue kind of Boomer. lol About every 3 or 4 years I have to replace either switch but I make sure to keep backups that I buy when they are on sale. $20 each at Canuck Tire. 10 min to swap one out.
On the left is my DIY speed controller made with a ceiling fan controller and NOT a light dimmer. I just ordered a new exhaust fan and 6-8" adaptor for it. I'm planning on doubling the grow space down there so why not get the bigger fan now. The 6" VivoSun was $80 at 390cfm and the 8" was only $104 at 720cfm and they have a built in speed controller. Good old amazon . ca
A remote temp/rh sensor is nice to have too. I have the monitor readout on the wall above this monitor so I can keep a close eye on things. Temp too low in the morning? Maybe the light didn't fire up. Getting too hot? Maybe the cooling switch is dead. Go look!
A loupe and magnifying glass for easier identification of when to harvest (especially useful for your first few grows), a few hygrgrometers for your jars when curing (I've always used Caliber III units), and do yourself a huge favour and get a bag of Boveda 62% humidity paks, also for curing.
You're also going to need a good pair (or five) of trimming scissors; I prefer Fiskars above all others. A sizable amount of 99% isopropyl alcohol is a requirement for keeping tools clean.
I too love my Fiskars but while trimming I just scrape the blades with a small penknife for good scissor hash and every 3rd scrape or so wipe then down after with a bit of paper towel that has a light smear of coconut oil on it. Slick as bat shit and much faster than soaking in ISO tho if done that way the ISO can be evapped off and some fine oil results. I cut a strip of paper towel about 4x1.5" and fold it twice then dip my finger into the oil and do a light wipe on the insides of the fold.
I recently got some 62% Integra BOOST 2-way packs. 10 - 8g ones for small jars and a couple of 67g ones for larger containers with up to an elbow of bud. I am not impressed and think they are crap tho the grow store guy said they are better than Bovedas. I go by feel and if the jar doesn't have a moisture pad like most of the plastic tobacco cans I use to store pot in then I make one. Same idea with the paper towel bit folded into a pad then use a bit of Scotch tape to hold on the inside of the lid. Few drops of water and that crunchy bud is back to good to go overnight.
I fresh trim off the plant and then use doubled paper bags to hold around 100g of wet pot each then keep them in my cool basement. Dump out into a clean tray once a day for the first few days to bust up the big clump gently then lengthen the time as they dry and clump up less. Can go 4 weeks before dry enough to put into the cans and burp for another month before dry enough to smoke. The cure is amazing. It's the slo-dry that really does the trick for smooth smoking, sweet smelling bud. Hanging to dry in a few days gets you harsh bud lacking in those subtle odors that us oldtimers love so much. They need to stay evenly moist during the whole process so the chlorophyll and starches break down biologically. Once in a long while I'll forget a can then get some mold so that goes into the oil pile for extraction. No biggy.
Not many people have the patience for it but it's worth the effort and I always have lots of cured bud to keep me happy while waiting.
Good luck and good growing!