In addition to the above mentioned advices it all starts with maximum visibility. In other words creating the maximum number of reads for your published work. I hereby give some actions one can perform entirely by yourself and which can be beneficial for the visibility of your work.
Since Google Scholar is THE source used by researchers I highly recommend to make your own Google Scholar profile. Your name will be underlined and by clicking on your name by those interested you get a full overview of your other publications.
Use Researchgate. As we all know it represents a huge and fairly active community of people involved in scholarly work as can be judged by their pretty lively forum and the upload activity of authors to add their work.
ScienceOpen is as far as I can tell a relatively new player and despite a number of downfalls (very low and unreliable citation count for example) it is still interesting since this service allow you to influence the way your paper is presented. You can add a thumbnail with a figure that might draw some additional attention or make a new summary suitable for a bigger audience. Tip: use your ORCID ID and (most of) your publications are automatically added in your profile.
Dimensions can be considered too. Not that much of a personal experience yet, so not able to tell you the exact added value of this service.
Kudos is a self-proclaimed innovation. Due to the low number of members it is not a real active service (yet). However the service allow you to present your paper in a new way, with possibilities to present your work in your own words and with more explanatory comments of its real meaning and potential impact and relevance.
Publons can be considered as well. Recently (even more) integrated with ResearcherID. Has a good link to ORCID. Beside another way to ‘expose’ your work it is interesting when you want to see details of your Web of Science details, which is convenient if you (just like me) have no subscription for this service.
PubFacts is a nice one too, there service seems to speed up gradually and some novel features to promote your publications are implemented. Limit primarily to PubMed publications.
Zenodo is a repository service that allows you to upload your publications in their database. In relative short time I saw a substantial number of views and downloads of my papers.
Last but not least make sure that you link your name (or names once there are slight differences in the name for whatever reason) to ORCID. Not only is this nowadays more and more a prerequisite for submitting a manuscript to a journal, but your ORCID ID can be used for a number of the above mentioned services (Publon, ScienceOpen, Dimensions and so on).
PS. You might consider Academia.edu. However nowadays most of their features are behind a payed (premium) service.
On the risk of being accused of self-promotion I suggest to read a little document I wrote on this topic:
Method Information and tips related to search engines like Google S...
Hope this is of any help and add to answering your question.
Carefully choose your keywords. Choose keywords that researchers in your field will be searching for so that your paper will appear in a database search.
Use your keywords and phrases in your title and repeatedly in your abstract. Repeating keywords and phrases will increase the likelihood your paper will be at the top of a search engine list, making it more likely to be read.
Use a consistent form of your name on all of your papers. Using the same name on all of your papers will make it easier for others to find all of your published work. If your name is very common, consider getting a research identifier, such as an ORCID. You can provide your ORCID in your email signature and link that ID to your publication list so that anyone you email has access to your publications.