Hello,
Astromart has an article on 4/6/7-9mm planetary ep's, usual suspects.
1) Pentax XL ( best throughput and image detail on Jupiter)
2) Radian (very close second I might add)
3) BO TMB ( because of FOV and eye relief)
4) UO HD, Circle-T Ortho (due to eye relief and FOV)
5) Nagler T-6 (rating reflected the amount of aberrations)
So, the TMB keeps good company for the price if you can find a good copy, range from $50 posted but not always good QC unfortunately.
https://astromart.com/reviews-and-ar...parison-review