We also do the 90-second keto bread, learned about it here after the hubby switched to a keto lifestyle. He's lost about 200 pounds and maintained the loss for over a year, and is still keto and very happy. He does get regular doctor appts and lab work done.
There are some pretty pricey keto friendly breads out there that can be ordered. We are fortunate enough to be able to get this at Costco, think it is still close to $4-5 per loaf/package of buns but it allows us actual bread.
https://franzketo.com/
Note: This is nice bread tasting/bread looking/bread textured but I do not advise toasting this. Turns it hard but not toast... it grills nicely if you spread mayo on the outside, or use butter. Nice thing about keto is use of butter.
Prior to that, Franz makes a "white" whole wheat that was our best choice for a low carb sandwich. It toasts fine.
Costco has some other things that are nice to have/can be made at home in terms of wraps made from cheese and/or cauliflower or other things.