We all know about the Vanguard class ship the ark as the main autobot command. But is there more then just that 1 ship?
....Of course there are. You got the Axalon(Beast Wars), the Steelhaven(FortMax's ship in the Marvel continuity and Ultra Magnus' ship in Animated), the Xantium(The Wreckers' ship from IDW), the Gung Ho(Beast Wars Neo), the Proudstar(Nova Prime's ship in Devastation), Brave Maximus(Car Robots), the Battleship Maximus(Fortress Maximus in ship mode in the Japanese G1 continuity), and so much more.
Well if you mean just the G1 cartoon, then there were other Autobot ships like those in the movies, but they were just simply named Autobot Shuttle. While in other versions of G1, there were "Ark shuttlecraft", which were basically smaller ship in the Ark. The IDW G1 continuity probably has the most amount of identified Autobot ships, since they expanded the war to happen galaxy wide rather than simply Earth and Cybertron. As such there was at least 32 Arks, as well as other ship classes to fill up the Autobot navy, such as the Trion ships, their version of the Autobot shuttle, the Nightbird, a cargo transport, or other's that weren't identified, like Autobot High Command after Cybertron became uninhabitable.
There were also G1 Autobot ships that used the same model as the Ark that were actually retconned to be the same model as the Ark, named Vanguard-class Deep Space Cruisers.
I will add some Decepticon ships as well. Yukikaze. Galvaburg. GungHo. Dinosaur. Axalon. Darksyde. War World. Semper Tyrannis. Steel Haven. Revenge. Victory. Lost Light. Worldsweeper. Troon Thunderwings Ship. Club Con. Nemesis. AKA Trypticon. Jack Hammer. Iron Will. Thunder Arrow. Rocket Base. Galaxy Shuttle. Omega Supreme. Skylinx. Astrotrain. Fortress Maximus.
If you're including Animated Omega Supreme, you can't forget all the other Animated ships. Galaxies issue 10 gave us Ultra Magnus' ship The Fist of Iacon.
Those aren't all Decepticon ships... A lot of what you just listed were Autobot, Maximal, and Predacon ships. Some of them were Decepticon ships but you started out by saying you were only going to list those not the other ones. In fact the first six you listed were all Maximal and Predacon ships. So you didn't even start listing any actual Decepticon ships till about half way down.
The same issue still applies. The OP only asked for Autobot ships. He said he was going to list some Decepticon ships as well. Then the first six ships he lists off are neither Autobot nor Decepticon. The thread was already about Autobot ships in the first place so saying "Some Decepticons as well" just means "Here's a list of Decepticon Ships you didn't ask for."
I don't know ship sizes or the names of said sizes but we see 2 seemingly identical ships of the same sub Vanguard type in "The Transformers The Movie"(86) That's just G1 Autobot Ships that appeared in the 86 Movie, in the same movie the Autobots take 2 ships from the Quintesson homeworld, one of which was the ship that brought Wheelie to Quintessa in the first place