What do you want?
Build a housealtar/plant a wooden post in your garden which you water with mead and burn stuff for while reciting something which sounded neat in the internet or use some simple nietzschelike approach were you pray whatever comes to your mind to Xgod while you are doing a selfimproving activity you feel like the deity would like to watch or see as a sacrifiece to its defining principle?
That what it seems to boil down to most of the time, probably fun in groups but then you would have to hang around the unironic guys you wouldnt believe with.
If its about longer lasting traditions and a groupfeeling of the kind were its the local community with old people and children, you could simply look for such rites in your neighboorhood.
Most cities and villages are filled to the brim with hundreds of local variations of rites mixing christian and pagan stuff from way back then such as the walk for saint martin and similar "Heischebräuche" along whatever else is celebrated or used to be celebrated.
(A lot of festivals and curious rites and customs were abandoned in two big cosmopolitinisation waves during the industrialisation and the 60s.)
If you wanna come up with something personal that feels in some way germanic for the romantic value id advise you to not seek help on asatrusites first as these often try to find a common ground on the Edda and a certain set of gods while overlooking smaller records which do not fit into popculture, but make use of your language and heritage firstly.
Look into !local! villages internetsites or what word of mouth you may know of yourself including the city/place you life in and search firstly for traditions which are currently practised, which used to be practised (wikipedia and 19th century Volkskundler do a good job at portraying recently extinct beliefs and how they were tied to prechristian ones: https://archive.org/stream/waldundfeldkult02heusgoog#page/n224/mode/2up such as this account about corn-spirits)
Next step are local fairytales. Every little pissant village has a bunch and gladly theyve been written down often in the net.
Some of them basically scream at you "Y'know we used to worship that rock there" which is useful for locating places which were associated with a certain spirits name, why worship Freya in your backyard if you have a matresstone in your area or know of a mountain or spring where something with a wacky name like "Buschgroßmutter" went around.
http://www.sagen.at/texte/sagen/deutschland/thueringen/vonfrauvenus.html
http://www.sagen.at/texte/sagen/grimm/derkoeterberg.html
Last but not least,if there are gaps left fill them with what archeologes have found in the area and then what you'd ask asatruers, come to a conclusion if you can copy what peasants did just 200 years ago but with deeper knowledge about the practizes pagan background and how to offer or give some special day at your location further meanign by reviving a little custom that people forgot while participating in what else is done.
A small thing that might give you an introduction is researching about german housespirits.
A practize that neatless went on from the pagan times before 700AD over the middleages into the early 19th century (and was in fact practized in almost all cultures like its with thai spirithouses still today, but I focus its german manifestation now.) was putting a bit of leftover bread and milk at a designated place for a housespirit, be it a Heinzelmännchen, Kobold or Moosweiblein in form of a little figure or nonpoisonous snake which got fed as substitute -if you can do this without feeling all to silly you might want to continue.
Some Sources which might also interest you:
>General stuff about ghosts, skip to the part about housespirits in germany.
https://books.google.de/books?id=D-h4DAAAQBAJ&pg=PT26&hl=de&source=gbs_selected_pages&cad=2#v=onepage&q&f=false
Here you can download a vast commentary from 1891 (so 100% wicca free) with tons of sources on the Indiculus superstitionum et paganiarum a latin text from lower saxony written 700AD by the church as an advise against and description of all pagan rites they observed and how the people tried to hide them.
http://www.europeana.eu/portal/de/record/9200143/BibliographicResource_2000069485152.html