I don't have those seforim handy now to look them up. If you can quote them, I would appreciate it. Exact full quotes only.
I would but there is too much. Let's just stick with Shulchan Aruch for now.
ישתדל אדם להתפלל בב"ה עם הציבור ואם הוא אנוס שאינו יכול לבא לב"ה יכוין להתפלל בשעה שהציבו' מתפללין [וה"ה בני אדם הדרים בישובים ואין להם מנין מ"מ יתפללו שחרית וערבית בזמן שהצבור מתפללים סמ"ג] וכן
אם נאנס ולא התפלל בשעה שהתפללו הציבו' והוא מתפלל ביחיד אעפ"כ יתפלל בב"ה:
A person should try to pray in the synagogue with a congregation, and if they are unable (lit. "anus", coerced) to come, they should intend to pray while the congregation is praying [This applies to people living in small setttlements, unable to pray in a minyan -- they nevertheless, should pray shaharit and arbit during the time of congregational prayer -Sma"g] If they (the person) could not pray at the time when the community pray, and is praying alone, nevertheless they should pray alone in the synagogue.