FYI, some on your list were already mentioned and/or discussed.
Mass. 4/225
Already mentioned
Mass. 146/122A
Judging by GSV, Park Hill Ave. & Granite St. don't appear up to snuff to be designated as a state route... in this case MA 122A. Note that MA 122A northbound does veer off MA 146 prior to the latter meeting I-290.
I-93/US 1/Mass. 3
This one I believe was discussed before. However, since both US 1 & MA 3 leave I-93 at both ends (but different locations) and continue as stand-alone routes; the best one can do IMHO is either mute or silent the US 1/MA 3 concurrencies.
I-95/Mass. 128
Definitely already discussed.
I-295/US 6 (RI)
You may want to read up on the history of what was once proposed as I-84. This short concurrency exists as a result of I-84 in RI not happening. This concurrency is no worse than the I-95 (MA 128)/US 3 concurrency in Burlington. Again, such was the result of the US 3 Expressway south of Burlington not happening.
I-91/Mass. 2
If MA 2 utilized MA 2A in Greenfield; what would the leg between US 5 & I-91 be? If anything, I mute/silence the MA 2/2A concurrency east of US 5 from Adams St. (MA 2A West) to West Orange Rd. (MA 2A East) in Erving.