Mods take time to develop. The game was released barely week or two ago. To my knowledge, there's only two mods out at the moment. One is in Alpha stage from Entrenchment, and the other doesn't add any new ships.

Expect to be waiting a good long time. I'll be waiting with you.

Which one is the 'flyswatter?' Corsev? If so, give the thing a chance. Its great if you know how to use it.

Personally

Maelstrom R7 has the best ship models IMO, Mainly because they are in keeping with the games Aesthetic. Also since alot of them use stock Textures they also carry over to rebellion looking good.

ZombiesRus5 Sins of the Fallen has 1 or 2 nice looking models but quite a few don't stand up as well to rebellion graphics

also really looking forward to IskatuMesk's release all of his screenshots look amazing

https://forums.sinsofasolarempire.com/374296/page/59/#replies

so far all of his ships.... look incredible

If you want nice looking star wars models get the/a starwars mod...https://forums.sinsofasolarempire.com/411648

If you want EveOnline get the eve online mod... (these look Amazing)

If you want Battlestar galactica Get the battlestar mod....

Star trek.. get the star trek mod...  Sacrifice of Angels 2 

etc etc

if you just want a new Corsev model for personal use, I would suggest using one of the Caldari or Minmitar models from sins of new Eden https://forums.sinsofasolarempire.com/389504 pictures are here https://forums.sinsofasolarempire.com/412617