1) Unfortunately on Amazon, most tube tray holder rows are 8 or 10 per row, instead of 6 / 12 / 24 which are better for E-series values. I did find some trays with 12 or more per row (and there may be more).
https://en.wikipedia.org/wiki/E_series_of_preferred_numbers#Examples
12 x 5 - https://www.amazon.com/ULAB-Scientific-Plastic-Include-UTR1015/dp/B07S67MKVZ/
12 x 5 - https://www.amazon.com/DEPEPE-Scientific-Experiments-Containers-Decorations/dp/B07Q5DZ3CR/
12 x 6 - https://www.amazon.com/Bel-Art-F18860-1013-10-13mm-Places-Polypropylene/dp/B002VA5VKQ/
15 x 6 - https://www.amazon.com/90-Tube-13x100mm-Clear-Plastic/dp/B01M5G3SYZ/
12 x 8 - https://www.amazon.com/Bel-Art-F18765-0001-Poxygrid-15-16mm-Places/dp/B002VA5V4C/
2) Coin Envelopes are one of the cheapest axial component storage solutions, and takes up less space too. Coin envelopes are a better solutions when a person has additional less common resistance values, such as 3.01K (E48 series) or 4.99K (E96 series) or 9.88K (E192 series). When using coin envelopes, use rubber bands to bundle all values within a decade together to make it faster to find values, such as 10.0 to 99.9 ohm / 100 to 999 ohm / 1.00K to 9.99K / 10.0K to 99.9K are decade groupings.
A few weeks ago when I posted about resistor storage and what has the fastest access and smallest footprint, it blew me away only one redditor gave me this idea: test tubes. It's so genius. I can grab any value resistor in about 1 second, with one hand, and put it back by practically throwing it in the empty slot. Got these on Amazon. They each hold 60. You can buy these caps as well, 100 for like $5, much easier to label with the flat top. Thanks whoever that was that gave me this idea! It's amazing!
(Edit: the only possible downside is if you needed to store 100+ of each resistor, and the initial set up time of snipping each resistor pack into each tube. Other than that, 👌).
Here's the links to the tubes/holder and caps: https://www.amazon.com/gp/aw/d/B07Q5DZ3CR?psc=1&ref=ppx_pop_mob_b_asin_image https://www.amazon.com/gp/aw/d/B09SGM4NMB?psc=1&ref=ppx_pop_mob_b_asin_image