Need help with team comp

I'm assuming you have Hans. It looks like you have a lot of crit servants - Raikou, Emiya, Kintoki, Saberlot, and Li Shuwen all work well as crit-DPS. You also have some arts DPS - Vlad, Shiki (asassin), Saberlot, Li Shuwen specifically.

You could try making an arts-crit team with Saberlot, Shiki or Li as DPS depending on what class you need, and have either Hans or a friend's Tamamo for support. Maybe use Atalante or Scathach to generate stars, or Fuuma if you have him.

Raikou also works well with Hans, so you could put them together with a support Waver to charge Raikou's NP.

You also have a bunch of quick servants, so if you wanna quick-chain like crazy maybe just throw Kintoki, Carmilla and Scathach/Atalante on a team together lol

For farming teams, throw Raikou and Tamamo Cat together with whatever other AOE servant has a class advantage and put NP-CEs on them all.

EDIT: I can't tell whether that pink-haired servant next to Lancelot berserker is Tamamo cat or not, I'm assuming it is.

These suggestions are just off the top of my head so I can't guarantee their quality.

Saberlot can be a one man wrecking crew when you can generate the stars for him, which your team should have no problem doing. Don’t waste anytime with Stheno as an Assassin as she is pretty poor. Depending on the enemy classes, Kintoki, Shiki and Atalante can provide plenty of CRit Stars. And if you don’t want to waste all the Knights medals Saberlots skills, I would at least try to get his skills to 5/5/5 for now. If you have the Hot Springs event CE FB I would equip that on him and if you have a Fragment CR to put on another party memeber you’ll be swimming in stars.

You also have some good servants for ST Arts damage with Li and Vlad. Pairing them with a friends Tamamo Caster can do devistating damage to a ST...if Vlad lives to the boss lol.

Your biggest issue is that you are lacking a lot, well pretty much any of the high end support servants, so most of the time you’ll be reserving your friends list for that purpose. I assume you have Hans who can certainly be useful, especially as a 2* and hopefully your keeping your Mash leveled up. From the Servant list you have there (and I think the top left is Ruler Jeanne but I may be wrong) your best team comps will revolve around buster and crit teams for now it looks like.

I would pair Saberlot with Shiki and Hassan of Cursed Arms to generate his stars. You don’t want Kintoki rider stealing them from him when Saberlots skills are inactive. Pairing Raikou and/or Herc with Mash or Cu for the extra survivability will help keep them on the field doing damage longer.