Wanted: Strong Water/Ground/? types to battle 8th gym.

Most of my "good" team isn't strong against fire types, so I was hoping someone/s could trade me some water/ground types to do my eighth gym? I just really want to get to the shadow region since I can't get my Gale of Darkness emulator to work lol.

I will trade back your pokemon once I defeat the gym leader (unless you want to make a permanent trade).

Right now my team is:
lvl 78 Blastoise   
lvl 67 Charizard   
lvl 50 Mantine   
lvl 51 Wailmer   

Trade name: Catstylist

For permanent trades, I don't even use my starter (Magby/Magmar), so I'm willing to trade it but it sits at a low lvl 20. Honestly, I don't really have any other conceivably good pokemon since I usually don't care about like... actually completing my pokedex or anything... I just play the game since it's cute and a form of escapism.  

Here are my three PC boxes of pokemon:
https://i.imgur.com/ku3ZXYE.png
https://i.imgur.com/yBqKdxM.png
https://i.imgur.com/VS38csh.png

With regard x

I can get you Carracosta, Corsola, both of whom resist fire 4x, although their weak to Camerupts earth power, and Swanna, who resists 2x and is immune to Earth Power. I have Crawdaunt with Crabhammer, or I can breed you a Larvitar with Stone Edge. I want your Smeargle, Umbreon, or Snorlax if possible, mostly want Smeargle though. Message me if you want, I also have most of the Water Starters, but they're level one breeds.

Shax u can try what i did without the need for strong water type pokemons

If u have any pokemon which knows to use Rain Dance use it at the beginning it will last almost till the end removing the sunlight effect and boosting water type moves

I used that trick and defeated the last gym very easily