Get a fully imprinted bronto.

Mount a platform saddle on. (Recommend a ramshackle or higher)

Mount it with 6 cannons (3 on both sides left and right)

Place a catapult at the back

1 ballista on the front, complete a base with an angled roof

Then place 5 autoturrets on the roof (2 each side and one on the middle)

Welcome you have dreadnought

I tamed him today, just aim for the head with tranq darts or arrows, make sure no brontos are close, my bronto was lvl 1 when i found him and tamed him, while lvl 1 i killed a good level trike with 2 hits brontos are also very good berry gatherers. Also while talking abt bronto type dinos, i tamed a diplodocus in thoughts of it having an attack, i got dissapointed when i saw that he can only push away, like bro, my bronto and ankylo yeet you out of the atmosphere while dealing TONS OF DMG

This works with all platform saddle dinos, but if you want to load dinos (rexes and other big dinos included) you can build a open elevator up to the height of a titanosaur's platform and have a ladder up the back. You could even stack a quetzal on a paracer on a bronto on a titanosaur if the elevator is big enough

Amazing protectors. Loud as can be and shake the earth so much you almost can't see straight, but goodness, they can kill pretty much anything attacking you! Had a level 5 or 6 that took on a theri that had taken out my Diplodocus (I have the immersive taming mod, makes life easy). Killed it in seconds. Oh, added bonus, they can carry a LOT mine carries a house's-worth of supplies pretty much all the time. Slow, bit SO worth it!!!

I think there’s some kind of structure weight reduction when building on these guys. I have a massive base with lots of furniture in it. The platform saddle is 20 weight, and with nothing in its inventory, the total weight on it is 35 weight. Very nice. If you’re playing with friends, go for a Brontosaurus base if you don’t have access to a Quetzal or Mosasaurus.