DOT and MATIC both have good potential for the future.
but I myself prefer to hold MATIC for this year's bullrun. but it all depends on how you analyze it and what your future outlook is. because everyone has different views. and don't follow other people's views that don't necessarily match your wishes. stay DWYOR
The two projects have good utility but I would rather go for MATIC since it has good market movement and potentials of hitting 2X with time. I don't know more about Dot and I believe it is a good token that one can add to altcoins portfolio with a good movement.
There are other projects in the market that could make us good rewards if we know how to get prepared and invest in them at the appropriate time. Timing is one of the ways we can keep making money from cryptocurrency projects ifnwe know the right time to invest in them.