I personally want it to be like this, because I see it as impossible for Bell, with his level 5 status and level 6 power, to continue growing alongside level 2~3 teammates that he would have to protect in the right scenarios for him.
It's a simple logic, Ais, who is the co-star, belongs to the current strongest family, whose power keeps increasing to allow Ais to fight in the 60 floors and continue her growth. This need for Ais to have a strong family is exactly the same as Bell's, no matter that Bell has a fast growing ability, if he doesn't fight in scenarios commensurate with his level/power, Liaris Freese will be of little use to him.
In that sense, I think that the new members should be able to keep up with Bell at least until he is a level 6, in other words, the new members should only be first class adventurers or be close to be it. Although they could also admit those who are second class but have special abilities.
The most common negative that I have seen to this proposal is that if new and more prominent members are joined, the leading roles of Bell's current teammates would be lost. My answer to this is that yes, their great role would undoubtedly be reduced, but this one wouldn't go away because they mainly do support work and it's something they can continue to do even if there are strong new members.
It's a matter of taste, but I think that the price that plot coherence is paying for Bell's current team to continue to be the protagonist is too high, for example: how is it possible that Welf could have defeated Allen? Ok, a Crozzo magic sword has the power to defeat a level 6, but how could Welf carry out his sneak attack on Allen without him noticing? And why couldn't Allen evade it if he's the fastest in town? another problem, why did Hogni end up exhausted after defeating Daphne? besides, how could Naaza hinder Bringar's movements with her arrows? if due to the level gap, at most she could follow their movements with her eyes but not with her hands and finally, how could Mikoto catch and hold the Bringar in her magic and even defeat one of them? Tons of plot armor so that the current Bell team has a leading role.
If you are very tolerant of the abuse of plot armor you will probably disagree with me about the need to improve the Hestia family with new strong members, but if you don't like this abuse either, we can share ideas.
I bring up this debate because before volume 18, the real possibilities of improvement of the Hestia family were very little, being the plot armor almost the only available alternative, however, with the dissolution of the Freya family new alternatives have been opened real that in my opinion the Hestia family should take advantage of and therein lies the debate.
Regarding who I want to join the family:
Mainly Ryuu, and in regards to former Freya members: Hogni, Heith, Horn and Hedin (only if he is willing to become a compassionate person like any Hestia member should be).
With these new members added to the current ones, Bell would have the wherewithal to become a level 6, in a level 7 maybe not, but in a level 6 for sure.
Other possible former members of Freya would be Vanir and his team, they would not be essential, but they would not be superfluous either.
And finally: I would also like Lidari, Uskari and Talvi, too bad they are not canon, Imao.
Let me know what you think.
PS: Please, if you are going to suggest some new members, make sure they are a valid option to keep the discussion in serious terms, for example, it would be ridiculous to suggest Ais, no one from the Loki family is available for obvious reasons.
