I’m new to machine emb, but been sewing for years. I’d like to suggest that you goto your local sew shop/dealers, look and try all the various Emb options out there first. Figure out which functions and hoop sizes that are ‘musts’ for you and what you plan to create. Then narrow your machine search based on your ‘must haves’. Also, you’ll want to have a great relationship with a local dealer so you can get your machines serviced.
Some emb machines cost well over 10k, others cost $5 or $6k. But if you don’t mind buying an older machine (make sure it’s serviceable/upgradable) you can get under $1k.
Getting a used machine from a dealer is best, it’s already been serviced and checked out. But like a certified pre-owned car... a bit more expensive than when bought on the open market.
Best bet? Ask around at sew shops, churches and guilds... ask your friends... sometimes... a older friend who cannot physically sew anymore will Gift his/her machine onto another sewer.