When choosing a steel string acoustic guitar, the price differentiation often pays for the woods used and the construction method. Cheaper instruments often use laminated woods (small veneers of woods glued together) whereas more expensive ones tend to use solid woods (a single piece). If you can afford to, go for a solid wood instrument as the sound will be much better.
https://acpcovers.com/
https://trekkit.in/
https://avlonline.com/
https://www.facebook.com/people/Rare-Metal-Blog/100092601606785/
Sometimes intermediate priced guitars have a solid wood top (where the sound hole is) and laminated back and sides.
Good cheap instruments these days can start as low as £150. If you are using something regularly at church it is best to spend at least £400 and if you are looking for a serious guitar that you can cherish you can get a fabulous instrument for about £800 upwards.
If you are playing live you will need to budget for a pick-up system rather than trying to mic the guitar. The two best known types of systems are the under saddle (or under bridge) ‘piezo’ system or the sound hole pickup. There are loads of Piezo systems out there that produce really good sounds but need a battery operated pre-amp to get the best results. If you are buying a guitar with a pick-up system its probably got this lot included already. The sound hole systems have come a long way in the last 15 years. I use the most basic of the Fishman Rare Earth sound hole pickups in my own guitar and I love it.