Team comp recommendation

Honestly you'd be good with tons of crit teams without good crit star generators with the exception of rider toki.

Sorry if this will be long so...
1. Rama, helena, andersen, buster crit team with helena helping Rama to get off his NP with her NP charge, increasing his damage, and enable andersen to use his NP when needed increasing his survival while using innocent monster and enable him to live longer and increase Rama's crit damage
2. Helena, Rhyme, Andersen, arts crit team with Helena's Np charge and her increase all card effectivendss could charge her NP easier, while Andersen increases rhyme's crit damage. This could be used to farm assassin nodes
3. Helena (yes I really like her), Medea, and Rhyme this is your assassin boss killer team After the skill interlude Medea could increase NP gain rate of Rhyme while Rhyme's crits whittle down the boss and both her and helena to kill off the waves
3 Rider toki and Andersen your caster boss killer. You don't really need much support for rider toki, but since he's a rider who crits a lot then you could pair him up with Andersen and you will see that golden damage
4. Fran, Medea, Marie. Honestly this is a basic farming party and would work better if you have some taunt ce. Marie heals your party and removes debuffs through her NP, but her NP gen is pretty which brings Medea to the place and if Marie's NP couldn't be used Medea's debuffs removal which also works as a NP gain increase would help Fran generate her NP more and use her NP freely.
5. For berserker teams anyone to keep them alive like Marie (heals) , mash (taunt), or raise their NP NP. Remember Herc is a monstrous back line with his Bond Ce (received at Bond 10) which gives 3 times guts and Ibaraki is someone you could put in the front line due to her general survivability due to heal and defense increase, but couldn't handle harder content still could be used to whittle down a really strong boss that would destroy your team and bring her with his Bond Ce letting him survive at least five times. This is just my opinion since I'm also confused to both of them, but let me tell you give up on beowulf make Banana loli your main berserker while not forgetting Herc whom you should always put on your back line since he really isn't that a Frontline survival berserker like Ibaraki and I'm assuming you still don't have his Bond Ce. Tl,Dr just always put Ibaraki front line if you need a berserker and don't have other classes to fight a boss and put her back line just in case

Again sorry for being so long I'm a pretty new player playing for only 70 days, so I think you should listen to more experienced players who would also answer this.

You've got a really good list here. But I'm seeing a distinct lack of Archers or Lancers. Before you start looking into team comps, I'd strive to get at least one servant of each class up into this level bracket.

Some noteworthy combinations you have here would be:
- Rama+Andersen
- Fran+Helena
- Herc+Andersen
- Fran+Ridertoki
- Medea+Helena

Also, don't neglect Mash. She's absolutely god-tier, even when her max level is lower than your other servants'.