I settled on Teac X2000r machines. their last prosumer deck. 6 heads, auto-reverse.
Amazingly, the pre-recorded tapes from late 50’s and 60’s, 70’s, early 80’s STILL sound terrific. No tape shedding, bleed thru, only rare brittleness and very rare stretching.
I bought +/- 500 of them years ago when shipping cost more than the tape. I add new leaders to transfer the starting force to the new leader, and metal strips for auto reverse.
Later, I sold over 100 of them on eBay, unlimited refund/returns: only 1 refund because USPS practiced destruction upon it.
People here: everyone picks tubes over SS. Everyone picks LP over CD; Everyone picks R2R over LP.
7-1/2 IPS sound darn good, best source material I have (except late 50’s 2 track stereo tapes, they are terrific IF you have real 2 track heads which I did, but sold, as the content is limited by it’s era.
3-3/4 IPS not superior to LP, avoid unless content cannot otherwise be found.
Home Made. I made a few from live FM simulcasts. IF you had superior FM tuner and reception, they were/are very good, I just played a live Pretenders tape I made. Exciting now as it was then.
I have bought several batches of home made tapes on eBay, some darn good, most just ok, I think the person’s recording skills, their sources are more important than the machine’s/tape’s capability; AND several brands of blank tapes sold back then had ’shedding’ problems later. Not the pre-recorded ones.
Here is a mixed bag of tapes that you will learn a lot from at very little cost
For truly superior sound, 2 track 15 IPS is the way to go, (much more expensive). my friend has 2 Otari’s, played me Led Zeppelin, holy smokes, now you know what they were hearing when they recorded. A whole world above other source material.
His are in great shape, this one looks beat, but just to show it: