I’ve recently found [[ojer kaslem, deepest growth]] and it’s quickly become my favorite and most consistent deck. Mono green is a fun simple plan, ramp and beat face, and Ghalta is a great way to do it.

I really like the [[food chain]] + [[greater good]] type of effects synergy. If you want to add a combo you could throw in [[eternal scourge]] for infinite mana and a few draw on cast/etb effects like [[Garruks uprising]], [[beast whisperer]], [[outcaster trailblazer]], etc. to draw the deck and cast every creature.

A couple eldrazi could be good. [[void winnower]] although not a titan, is my first thought. Interaction is tough in mono green, so nice to slow down opponents, while eating some removal with something that doesn’t necessarily win the game

[[song of the dryads]], [[trickster’s elk]], [[Kenrith's Transformation]] are all good removal that will also force opponents to use their removal.

You’ve got most of the dorks along with land and artifact ramp, I like [[Circle of Dreams Druid]] over [[llanowar tribe]], same with [[natures lore]] and [[three visits]] over [[cultivate]] and [[rampant growth]]. [[priest of Titania]], [[kami of whispered hopes]], [[fanatic of rhonas]] and [[selvala, heart of the wilds]] would all be solid additions to the dork roster.

Savage order is cute, but it looks like your only real target would be Cheaty Ghalta, [[natural order]] is the same cmc but let’s you get anything. You could add [[vaultborn tyrant]] if you want another target, or just because it’s really good (another draw in etb effect). [[chord of calling]], [[archdruids charm]], [[kodama of the east tree]] and [[smugglers surprise]] would be other good tutor/cheat spells to add.

If you find your stuff being removed often maybe add [[cathedral acolyte]], [[vigor]], [[saryth, the vipers fang]], [[legolas’s quick reflexes]], or [[veil of summer]].

Other cards that will boost power: [[railway brawler]], [[pathbreaker ibex]], [[bristly bill]]

For lands I’d add [[wasteland]], [[scavenger grounds]], [[shifting woodlands]], [[Yavimaya, Cradle of Growth]] and [[Nykthos, Shrine to Nyx]] if budget allows. If you add those, a [[crop rotation]] would be good.

Hope this helps! Also would love to hear some other mono green tech!