As for the DNA questions, I can only say I've only had limited success with subjects in this forum as well.darkerhorse wrote: 08 Apr 2023, 20:51 I'd be looking for suggestions on which DNA tests and which companies.
All I can give you as to test suggestions is what I've done (and the reasons why):
I started out with Ancestry -- it has the biggest database, and has given me by far the most DNA matches (close to 27k; albeit only 585 of those are listed as maternal). They do update their ethnicity estimates somewhat regularly as their database grows, and it does seem to improve with each update. Of course there is cost for the test & annual subscription, but coupons can be had online and the tests often go on sale. They have Beta tested some interesting features which have been helpful to my research. Ancestry GEDCOMS are downloadable (see further).
I next did 23&Me -- although the results line up well with Ancestry, they can pinpoint regions within a noted ethnicity that Ancestry cannot. DNA matches are limited to 1500 (at least at the basic level) and lower cM matches drop off as higher matches appear. Costs compare with Ancestry and 23&me GEDCOMS are also downloadable. No ethnicity update thus far.
FTDNA -- they have the ability to provide a matrix based on uploadable GEDCOMS (I uploaded both my Ancestry and 23&Me GEDCOMS). Gives you a bigger DNA match group, ethnicity estimates in my opinion are it's weakest link. I did my mtDNA test through FTDNA (and the have joinable DNA projects the other matrices do not). Costs for annual subscription and mtDNA or Y-DNA tests apply (I have NOT done the Y-DNA test). Very basic chromosome comparison tool. No updates to ethnicity mix.
MyHeritage -- again, using the uploadable GEDCOMS. Decent ethnicity matrix, I now have 10k+ DNA matches with them. Similar tools to the other sites. Subscription fee. Similar chromosome tool to FTDNA. No ethnicity updates.
Geanenet -- French-based, might be useful for your maternal side. GEDCOM upload. Hasn't helped me much.
My Living DNA -- UK based, ethnicity estimate is heavily UK biased. Again, GEDCOM upload. Not the best one unless you are 100% (or close) UK ancestry. No ehnicity update & DNA match updates rare.
GEDMATCH -- GEDCOM upload, by far the most scientific of the lot. Lots of tools even at the basic (free) level, even more if upgraded to 'Tier One' (nominal monthly or annual fee; I have not tried it yet). It can be rather overwhelming at first, but once you get to experimenting with the various tools it can be quite enlightening. It gives you up to 3k DNA matches at the basic level, up to 100k for the paid level. Besides the more scientific tools, you can compare each DNA match to your own DNA chromosome by chromosome. Oddly, only about 10% of the DNA matches are the same between the 2 GEDCOM uploads...
The one I'm now seriously considering is Nebula Genomics. Whereas all the above only test a very small fraction of your genome, Nebula tests 100%. It also has included health reports (of no particular intertest to me) which might be valuable to some. Downside is it's the most expensive test out there.
In short, depending on your budget (or how much you wish to invest), ANY of these options is better than none. This was just the path that I took. As you know, I'm closer to a breakthrough on my maternal side, but It's still elusive, even with the investment that I have made (thus far).
The choice is yours. Choose wisely.