OK. I don't mean to be rude, but from your responses in this thread you appear to lack a basic understanding of how mixers/sound systems work and with that (apparent) lack of knowledge this will surely end in tears! Sometimes it's better to be honest so as to be kind.
My sincere advice is to upskill before you make any further purchase decisions, and as a start, at least have a face to face session with a sound engineer who knows what he/she is doing.
Forums are OK for getting opinions on stuff you already have knowledge around, but are limited in terms of initial training and concepts. Please know we are trying to help, not be critical.
To answer the questions you raised in the last two posts:
The YAMAHA MG16X MIXER is a good UNPOWERED ANALOGUE mixer but has no front of house or monitoring processing and has LIMITED channels relative to what you currently require - your current set up WILL change!
The PRESONUS STUDIOLIVE 16 is a somewhat outdated (but functional) UNPOWERED DIGITAL mixer which (from memory) has front of house and monitoring processing, but you may find it's channel count of 12 mic inputs limited over time.
By UNPOWERED I mean these mixers do not include a power amp to drive PASSIVE speakers.
You have ACTIVE speakers (they have power amps built in), so either of these mixers will work.