We need use only two words for those who take serving responsibility in a congregation, "minister" (noting that the government 'minister' in UK and Australia, etc. is a minister, or servant, of the Crown.) and "deacon".
But neither as a rank.
Elders is also OK as it has biblical warrant.
So no more youth leaders, Sunday school leaders, Bible study leaders, etc.
Rather, I'd reserve 'minister' for a more general role and deacon for subsidiary ministry work.
So, with the senior minister, who is appointed by the elders to work full-time in equipping the church and developing people's skills, gifts and knowledge, there might be a youth/children's minister, and a minister for discipling (or coordinating minister), who would handle the training/equipping weekends (we call them 'Recharge' at our church) and maybe the Bible study and Christian training/pastoral activities.
All the subsidiary contributors, engaged in direct ministry and perhaps being developed for future ministry roles would be deacons. Youth deacons, Children's deacons or teachers, religious education (in public schools) deacons, or teachers,, etc.
Those serving in non-direct ministry or 'sustaining' roles, e.g. looking after property, catering, congregational enterprises etc. could be termed stewards. A large operation might have a 'senior steward', or 'steward-in-charge' to organize stewards and assistant stewards for the various sustaining functions.
This gets us right away from a worldly conception of how we structure our congregational life.